Stand column disassembling and maintaining device for coal mine

The utility model relates to the technical field of coal mine maintenance, in particular to a coal mine stand column disassembling and maintaining device which comprises a workbench, supporting legs are arranged on the workbench, a sliding block is arranged on the workbench, a connecting block is arranged on the sliding block, a connecting shaft is arranged on the connecting block, a placing plate is arranged on the connecting shaft, and a hydraulic supporting column is arranged on the placing plate. A fixing mechanism is arranged on the placing plate, a moving seat is arranged on the front face of the workbench, a first motor is arranged on the moving seat, a moving block is arranged on the moving seat, a lead screw is arranged at the output end of the first motor, a base is arranged on the workbench, a fixing frame is arranged on the base, and rolling wheels are arranged on the fixing frame. According to the hydraulic prop maintenance device, the hydraulic props can be conveniently placed in the placing gro