Three-layer spiral pipeline type coin separator

The utility model relates to the technical field of coin classification equipment, in particular to a three-layer spiral pipeline type coin separator, which comprises an inner spiral pipeline, a middle spiral pipeline, an outer spiral pipeline, a vertical frame, an inner output pipe and a middle output pipe. The inner spiral pipeline is nested in the middle spiral pipeline, and a plurality of first-stage sieve pores are uniformly formed in the pipeline surface of the inner spiral pipeline; the middle spiral pipeline is nested in the outer spiral pipeline, a plurality of second-stage sieve pores are uniformly formed in the pipeline surface of the middle spiral pipeline, and the pore diameter of the second-stage sieve pores is smaller than that of the first-stage sieve pores; the top ends of the inner spiral pipeline, the middle spiral pipeline and the outer spiral pipeline are fixed on the vertical frame; the top end of the inner spiral pipeline is provided with an input port, and the bottom end of the inner s