Multi-layer sectional type ratoon rice grain cleaning sieve

The utility model provides a multi-layer sectional type ratoon rice grain cleaning sieve. The multi-layer sectional type ratoon rice grain cleaning sieve comprises a cleaning sieve frame, and a shaking plate, an upper woven sieve, a middle shutter sieve, a tail fish scale sieve and a lower woven sieve which are mounted on the cleaning sieve frame, the front end of the upper-layer woven screen is connected with the tail end of the shaking plate, the front end of the tail fish scale screen is connected with the tail end of the middle-layer shutter screen, and the tail fish scale screen is obliquely arranged upwards; the middle-layer shutter screen comprises a screen piece, a plurality of first straw-by-straw strip groups and a plurality of second straw-by-straw strip groups, each first straw-by-straw strip group comprises two first straw-by-straw strips, the two first straw-by-straw strips are distributed in a splayed shape, the second straw-by-straw strip groups are arranged above the screen piece and comprise