Metal steel surface treatment device for lining attachment

The metal steel surface treatment device comprises a workbench, supporting legs are fixedly connected to the periphery of the bottom of the workbench, universal wheels are arranged at the bottom ends of the supporting legs, transmission rollers are rotationally connected to the two ends of the inner side of the workbench, and a conveying belt is in transmission connection to the transmission rollers; a first motor is fixedly connected to the right side of the front wall of the workbench, the first motor is connected with the front portion of a right side transmission roller, metal steel is placed on a conveying belt, a waste collecting box is attached to the right wall of a right side supporting leg, positioning plates are fixedly connected to the front portion and the rear portion of the left wall of the waste collecting box correspondingly, and the positioning plates are inserted into the right wall of the right side supporting leg. And pin rods are inserted into the supporting leg on the right side and the