Pine nut thresher

The utility model discloses a pine nut thresher, and belongs to the technical field of threshers. Sieve holes are formed in the lower side of a sorting leakage shell, a gap is formed between the sorting leakage shell and a crushing roller and is smaller than the width of a pinecone, the sorting leakage shell is provided with a pinecone inlet and a shell outlet, and a shell sieve plate is arranged on the lower side of the shell outlet. The screening device comprises a vibration assembly and a sieve plate assembly, the vibration assembly is used for driving the sieve plate assembly to vibrate, and the sieve plate assembly is arranged below the sorting leakage shell; the plurality of fans are sequentially arranged above the sieve plate assembly; the grain lifter is provided with a lifting assembly, a seed inlet and a seed outlet, the seed outlet of the grain lifter is higher than the seed inlet, the seed inlet is formed in the tail end of the sieve plate assembly, one end of the lifting assembly is arranged at t