Microsphere oscillation screening device

The utility model relates to a microsphere oscillation screening device which comprises a base and a screening drum, the screening drum is fixedly connected with the base through an elastic piece, the screening drum comprises a drum body, at least three layers of screens, a vibration shaft, a driving motor and a drum cover, the aperture of each layer of screen is sequentially reduced, the screens are detachably and fixedly connected with the vibration shaft and the drum body, and the driving motor is arranged on the drum cover. A discharge hole is formed in the joint of each layer of screen and the barrel body, a feeding hole is formed in the barrel cover, and a waste outlet is formed in the lower part of the barrel body; and one or more gas nozzles are also arranged in the microsphere oscillation screening device, and are arranged at one or more positions of the cylinder bottom, the cylinder cover, the upper part and/or the lower part of each layer of screen and the cylinder side wall. The microsphere vibrat