High-precision super-thick coal seam three-roller coal mining device

The utility model relates to a high-precision super-thick coal seam three-roller coal mining device, which belongs to the technical field of coal mining equipment and comprises a moving seat, the top end of the moving seat is rotatably connected with a one-way screw rod, a first motor is fixedly mounted in the moving seat, the output end of the first motor is fixedly connected with the bottom end of the one-way screw rod, and the output end of the first motor is fixedly connected with the bottom end of the one-way screw rod. A one-way lead screw is arranged on the top end of the moving seat, a moving plate in threaded connection with the one-way lead screw is arranged on the outer wall of the one-way lead screw, two limiting rods in sliding fit with the moving plate are symmetrically arranged at the top end of the moving seat, a fixing frame is fixedly connected to the outer wall of the moving plate, a coal mining assembly is arranged on the outer wall of the fixing frame, and a connecting plate is fixedly co