The invention relates to a wasted plastic steel wound polyethylene drainage pipe recovering device and technology. The device comprises a machine frame, a feeding partition board, a feed inlet, a driving motor, a speed change gearbox and a rotary cylinder. A control box is arranged at the upper end of the interior of the support, the driving motor is installed at the lower end of the interior of the support, the speed change gearbox is connected to one end of the driving motor and located at one side of the lower end of the interior of the support, and the rotary cylinder is connected to the other end of the speed change gearbox; one end of the rotary cylinder is fixedly connected to the speed change gearbox, the other end of the rotary cylinder is supported by a supporting arm, the feeding partition board is installed between the two sides of the support and located at one side of the rotary cylinder, vertical reinforcing ribs are installed on the back side of the feeding partition board, and a baffle is welded to the lower ends of the vertical reinforcing ribs; the feed inlet is formed in the middle of the feeding partition board, and two stand columns are further installed between the feed inlet of the feeding partition board and the rotary cylinder and located at the inner side of the feed inlet. The device has the advantages of being simple in design, convenient to operate, safe, reliable, and capable of saving time, decreasing labor force, reducing recovery cost and improving working efficiency greatly.