Well drilling device for geological well drilling engineering

The invention relates to a drilling device for geological drilling engineering, which comprises a support frame, a drill rod structure and a guide structure, the drill rod structure is arranged below the guide structure, and the angle of the drill rod structure is adjusted by a first guide structure in the guide structure; the first driving motor works to control the first supporting plate to rotate; the end, away from the first transmission rod, of the first supporting plate is fixedly connected with three oil cylinders. The adjusting plate is arranged below the oil cylinder; the outer wall of the adjusting plate is fixedly connected with the drill rod structure; the angle of the drill rod structure can be adjusted by utilizing the rotating first supporting plate in cooperation with the oil cylinders distributed in an array mode, multiple adjusting modes are provided, and the adjusting efficiency is improved. The sleeve in the second guide structure can further limit the direction of the drill rod structure,