Steel structure lifting device

The utility model relates to the technical field of steel structure lifting, in particular to a steel structure lifting device which comprises a lifting plate, a plurality of sets of containing grooves are formed in the top face of the lifting plate in an array mode, extension plates are installed on the four sides of the lifting plate, and supporting plates are installed at the top ends of the four sets of extension plates. Sliding grooves are formed in the corresponding sides of the four sets of supporting plates correspondingly, mounting plates are mounted at the top ends of the four sets of supporting plates correspondingly, and electric push rods are mounted at the positions, close to one sides, of the bottom ends of the four sets of mounting plates correspondingly. Through the arrangement of parts such as a lifting plate, a containing groove, a supporting plate, a sliding groove, a mounting plate, an electric push rod, a movable hinge, a supporting rope, a connecting column, a lifting rope, a limiting p