Environment-friendly rust removal device for round steel of multiple specifications

The utility model is suitable for the technical field of round steel rust removal, and provides a multi-specification round steel environment-friendly rust removal device which comprises a bottom plate and a polishing block. A first bearing seat and a stand column are installed on the bottom plate, a rotating shaft is connected to the first bearing seat, a tray is arranged at the top end of the rotating shaft, a clamp assembly used for clamping round steel is arranged on the tray, a driving assembly used for driving the rotating shaft to rotate is arranged on the bottom plate, two supporting blocks are fixed to the stand column, and a guide rod is connected between the two supporting blocks. A first sliding sleeve is arranged on the guide rod in a sliding mode, and an adjusting assembly used for adjusting the position of the grinding block is arranged on the first sliding sleeve. According to the environment-friendly rust removal device for the multi-specification round steel, the round steel is fixed to the