The invention discloses an integrated device capable of conveniently conducting
polishing, derusting and segmentation
cutting on waste steel pipes. The integrated device comprises an installing plate,a limiting ring, an installing table, a motor, a rotary shaft and a
cutting wheel, wherein a fixing base is installed above the installing plate; a connecting rod is arranged on the inner side of thefixing base and provided with a transmission wheel and a supporting rod; a
brush plate is arranged on the inner side of a
brush ring and provided with bristles; the transmission wheel is fixed to theright side of a rotary rod; and the rotary rod is connected with the rotary shaft through the transmission wheel and a
transmission belt. According to the integrated device capable of conveniently conducting
polishing, derusting and segmentation
cutting on waste steel pipes, four roller wheels are distributed on the inner side of the limiting ring at uniform angles, steel pipes with different diameters can be conveniently limited and fixed, and meanwhile steel pipes needing derusting can be conveniently pushed, so that the situation that steel pipes need to be manually pushed to move inside the integrated device is avoided, and the labor intensity of workers is reduced.