Abstract: To address the problems of high labor intensity, low control accuracy, insufficient intelligence of traditional directional drilling rigs in deep coal mining, which make it difficult to meet the demand for efficient gas drainage, as well as the technical bottlenecks in automation, control precision and process intelligence of high-power automatic drilling rigs, an integrated and systematic solution is proposed.A compact structural layout is adopted to develop a rod adding device consisting of a four-degree-of-freedom rod handling manipulator and an automatic rod storage and feeding system, enabling continuous automatic loading and unloading of heavy directional drill rods and reduction of operators per shift. A modular hydraulic system and a proportional valve-based closed-loop electronic control strategy are employed to establish a precise matching model between drilling conditions and control parameters, and the system response speed and dynamic stability are analyzed. Intelligent process algorithms including automatic tool face adjustment, automatic branch hole initiation, and closed-loop trajectory control based on measurement-while-drilling (MWD) data are developed, and a model for autonomous decision-making and real-time deviation correction in the drilling process is established, exploring high-precision control methods for directional drilling under complex working conditions.Field tests in the broken soft coal seam of the Camel Mountain Coal Mine in Wuhai show that the equipment successfully drilled a directional borehole with a depth of 621 m, increasing the construction efficiency by more than 50%, controlling the trajectory error within 1 m, and achieving a tool face control accuracy of ±0.5°. These results verify the technical advantages of efficient, precise, and less-manpower drilling in complex coal seams. Through structural integration innovation, electro-hydraulic control system co-optimization, and fusion of intelligent process algorithms, the proposed solution effectively overcomes the difficulties of low automation and poor control accuracy of high-power directional drilling rigs in deep and complex strata, providing a key technological pathway for the development of intelligent directional drilling equipment in underground coal mines.