To effectively separate fine powder from granules without wear or the like of the granules when separating the granules and the fine powder.

A particulate separator includes: a particulate tank 3 storing particulates in which granules P1 and fine powder P2 smaller than the granules P1 coexist; a cylindrical carrier pipe 4 communicated with the particulate tank 3; a blower 6 for carrying the granules P1 and the fine powder P2 stored in the particulate tank 3 from a suction port 4a of the carrier pipe 4 to a discharge port 4b by blowing force; a micro-mist device 7 for atomizing micro-mist W to the granules P1 and the fine powder P2 carried inside the carrier pipe 4 from a supply hole 4c formed between the suction port 4a and the discharge port 4b of the carrier pipe 4; and a fine powder removing tank 8 for dropping and capturing the fine powder P2 to which the micro-mist W atomized by the micro-mist device 7 is stuck.