Gravel screening device

The invention discloses a sandstone screening device, and relates to the field of sandstone screening, the sandstone screening device comprises a screening mechanism used for screening sandstone, and a conveying mechanism used for conveying the sandstone screened and falling from the screening mechanism is mounted and connected below the screening mechanism; the conveying mechanism comprises a conveying belt which is arranged on the machine frame in a transmission mode, the conveying belt is arranged below the screening mechanism, a stripping structure used for scraping off gravel attached to the conveying belt is arranged at the position, close to the conveying falling end, of the conveying belt, and the stripping structure is fixedly installed on the machine frame. According to the screening device, the occupied space can be reduced, the field is saved, the screening effect is improved, the possibility that screened sand and stones adhere can be reduced, the influence that the sand and stones cause blocking