The invention discloses a coin sorter. A machine shell is provided with a coin inlet funnel, a coin pushing disc, a coin guiding disc, a screening disc, a classification disc, a coin sweeping wheel and a coin blocking ring that are all orderly arranged from top to bottom coaxially; a main shaft which is driven by an electric motor to rotate is arranged on axis positions of the coin pushing disc, the coin guiding disc, the screening disc, the classification disc, the coin sweeping wheel and the coin blocking ring in a penetrating manner; the main shaft drives the coin pushing disc, the screening disc and the coin sweeping wheel to rotate synchronously; the coin guiding disc, the classification disc and the coin blocking ring are fixed and cannot rotate along with the main shaft; the coin pushing disc is provided with a coin pass hole through which coins can pass, the coin guiding disc is provided with coin falling tubes, the screening disc is provided with coin inlet holes, the classification disc is provided with coin separating holes, side parts of all the coin separating holes are connected with a coin guiding grooves, the coin blocking ring is provided with annular accommodating chambers, lower ends of all the coin separating holes are connected with coin guiding tubes, the coin sweeping wheel are provided with coin sweeping teeth, bottom parts of all the annular accommodating chambers are provided with coin falling holes, and lower parts of the coin falling holes are connected with the coin falling tubes. The coin sorter disclosed in the invention is simple and reasonable in structure, low in manufacture cost, and low in sorting error rate.