Hydraulic lifting device convenient to move and used for wide-body mine car

The utility model relates to the technical field of wide-body tramcar maintenance auxiliary equipment, in particular to a hydraulic lifting device convenient to move for a wide-body tramcar, which comprises a base and a lifting platform, four sliding chutes are internally connected with connecting components in a sliding manner, and the left part and the right part of the front end of the base are fixedly provided with first motors; rotating columns are fixedly connected to the output ends of the two first motors correspondingly, gears are fixedly connected to the front portions and the rear portions of the outer surfaces of the two rotating columns correspondingly, limiting sliding grooves are formed in the front portion and the rear portion of the upper end of the base correspondingly, and two second motors are fixedly installed on the upper portion of the right end of the base; the output ends of the two second motors are fixedly connected with two-way lead screws, and the front end and the rear end of the