Plane swinging screen

The utility model relates to a planar rotary screen, in particular to an arrangement of material flow route on the square plansifter in a screen box body, the screen layer number and vibration device place, which specifically mainly comprises a coarse square plansifter and a fine square plansifter, a collecting board of under screen material and a vibration device, and is characterized in that the coarse square plansifter has one or more than one parallel screen layer, the fine square planisfter has more than two parallel screen layers, the coarse square planisfter is above the fine square planisfter, the collecting board under the screen is arranged under the coarse square planisfter, the material screened through the coarse square planisfter is collected and fed in to the inlet of the fine square planisfter, and the vibration device is arranged between the coarse square planisfter and the fine square planisfter that are in upper and lower arrangement.