Hydrogeological drilling auxiliary device

The utility model relates to the field of hydrogeological drilling, in particular to a hydrogeological drilling auxiliary device which comprises a cover plate, two first sliding plates, a plurality of universal wheels with brakes, a mounting block, a connecting plate, a spring, a balance degree display device, a drilling device and a concentric-square-shaped frame. A groove is formed in the mounting block, a mounting groove is formed in the lower end face of the mounting block, and two first sliding grooves are formed in the mounting block; the drilling rig is mounted in the mounting groove; the two first sliding plates are slidably connected with the inner walls of the two first sliding grooves correspondingly. The two ends of the connecting plate are connected with the two first sliding plates correspondingly. A pushing assembly is arranged on the mounting block; the concentric-square-shaped frame is connected with the two first sliding plates, and a plurality of limiting cones are arranged on the concentri