Multi-layer separating sieve of peanut picking machine

The utility model discloses a multi-layer separating sieve of a peanut picking machine. The multi-layer separating sieve comprises an upper sieve plate and a lower sieve plate; the inclined lower sieve plate with the rear end higher than the front end is arranged below the left end of the upper sieve plate; holes that peanuts can not pass through are formed on the lower sieve plate; a slotted sieve constituted by uniformly and lengthways distributed steel wires is arranged below the middle part of the upper sieve plate; the right ends of the steel wires of the slotted sieve are elbows bent downwards, and the bending angles of the elbows are smaller than 90 degrees; an inclined chute with one end higher than the other end is formed below the slotted sieve; an inclined launder with the front end higher than the rear end is arranged below the right end of the slotted sieve and is butted with a conveyor belt of the peanut picking machine; the upper sieve plate, the lower sieve plate, the chute, the slotted sieve