Oil-water separation and classified collection device and using method thereof

The invention discloses an oil-water separation and classified collection device and a using method thereof. The oil-water separation and classified collection device comprises an oil-water separationtank, a fixing mechanism, a cleaning tank and a lifting box, a second collection groove is formed in the center of the oil-water separation tank, a first gear is arranged in the second collection groove, the first gear is driven by a driving motor mounted outside the second collection groove, a second gear is arranged on one side of the first gear, and the second gear is rotatably connected withone side of the inner wall of the second collection groove. According to the oil-water separation and classified collection device, a first rotating motor is driven to rotate, the first rotating motordrives a supporting disc to rotate through a rotating shaft, the supporting disc drives a fixing disc to rotate, thus to-be-cleaned objects are driven to rotate to be subjected to rotatable cleaning,and the technical problem t