Roller sorting machine

The utility model discloses a roller sorting machine which comprises a sorting machine rack, winnowing mechanisms are fixedly installed on the two sides of the top end of the sorting machine rack, each winnowing mechanism comprises a winnowing fan shell and a winnowing installation base, a plurality of screen shafts are rotationally connected to the middle of the sorting machine rack, driven belt wheels are fixedly installed at the two ends of each screen shaft, and the driven belt wheels are fixedly installed on the top end of the sorting machine rack. According to the roller sorting machine, the winnowing mechanism and the screen shaft are arranged, the winnowing motor drives the winnowing blades with the rotating shafts to rotate, the blades enable materials to move forwards on the screen face, and meanwhile the materials are loosened and layered. Particles smaller than gaps of the sieve holes fall down through gaps among the sieve shafts under the action of self weight and rotating force of the sieve shaf