Rapid pipeline rust removal device for water conservancy construction

The utility model relates to the field of water conservancy construction, in particular to a rapid pipeline rust removal device for water conservancy construction, which comprises a bottom plate, a supporting seat is fixed at the top end of the bottom plate, rotating shafts are symmetrically and rotatably connected to the top end of the supporting seat, cylinders are fixedly sleeved on the outer walls of the two rotating shafts, and one end of one rotating shaft is in transmission connection with a motor III; a rust removal disc is arranged above the supporting seat; by additionally arranging the supporting seat, the cylinder, the coating tank and the like, when other positions of the outer wall of the pipeline need to be derusted after the upper outer side wall of the pipeline is derusted and painted, the pressing plate moves upwards, the motor III is started, and the rotating shaft and the cylinder are driven to rotate through transmission of the belt wheel I, the belt wheel II and the transmission belt, so