Downhole tool lifting device

The utility model discloses a downhole tool lifting device which comprises a lifting cage, an upper mounting frame, a lower mounting frame, side plates, trapezoid brake blocks and hydraulic push rods, the upper mounting frame is welded to the top of the lifting cage, the lower mounting frame is welded to the bottom of the lifting cage, the side plates are arranged on the two sides of the lifting cage respectively, and the trapezoid brake blocks are arranged on the side plates. Trapezoidal brake blocks are distributed and welded from the tops to the bottoms of the outer sides of the side plates, hydraulic push rods are fixedly mounted at the inner corners of the upper mounting frame and the lower mounting frame through bolts correspondingly, and the output ends of the hydraulic push rods penetrate through the corresponding upper mounting frame and the lower mounting frame to be connected with the corresponding side plates in a welded mode. The whole underground tool lifting device is stable and safe to use, is