Device for cleaning fine powder adhered to screen

The utility model discloses a device for cleaning fine powder bonded on a screen, which comprises a powder screening bin body, a blanking funnel is arranged at the top end of the powder screening bin body, a feed port is arranged at the top end of the powder screening bin body, a screening component for screening is arranged in the powder screening bin body, and a discharge port is arranged at the top end of the powder screening bin body. A screening assembly is arranged on the powder screening bin body, a powder screening net plate in the screening assembly is driven by a driving air cylinder, and a powder anti-blocking air blowing assembly used for preventing the screen from being bonded and blocked is arranged on the side edge of the screening assembly. According to the ceramsite sand powder screening device, ceramsite sand powder thrown into the powder screening bin body through the discharging hopper can be screened, screening efficiency reduction caused by screen mesh blockage is avoided, manual cleanin