Quartz sand circulating crusher

The utility model provides a quartz sand circulating crusher. The device comprises a jaw crusher and a circulating frame, the jaw crusher comprises a feeding port and a discharging port. A collectingdevice is arranged below the discharge hole; one end of the collecting device is arranged below the discharge hole; the other end is arranged at the position, close to the jaw crusher, above the circulating frame; the device further comprises a conveying pipeline, the bottom end of the conveying pipeline penetrates through one end, away from the collecting device, of the circulating frame; the topend of the conveying pipeline is fixed at the upper end of the feeding hole; a lifting opening is formed in the lower end of the conveying pipeline; the lifting opening faces the bottom of the circulating frame; a screw rod is fixedly mounted in the conveying pipeline, the bottom end of the screw rod penetrates through the circulating frame and extends to the outer side of the circulating frame,a rotating motor is fixedly