Bending device for air purification air pipe

The utility model relates to the technical field of air pipe bending processing, in particular to an air purification air pipe bending device, which is characterized in that a workpiece conveying and rotating mechanism is used for adjusting the angle of a workpiece, and after the adjustment is finished, a driving mechanism is started again to carry out secondary bending on the workpiece, so that multi-angle quick bending operation on the workpiece is realized; comprising a workbench, a roller, a clamping groove, connecting plates, a guide wheel A and a rotating shaft, the rotating shaft penetrates through the workbench and is rotationally connected with the workbench, the roller is arranged at the top end of the rotating shaft, the clamping groove is formed in the outer side wall of the roller, and the connecting plates are arranged at the upper end and the lower end of the roller correspondingly; the bending machine further comprises a driving mechanism, a workpiece conveying and rotating mechanism and an au