The utility model provides a catch dirt purifier for mine gallery, its characterized in that: it includes set up frame (1) on ore ducts, lays on frame (1) and catches dirt curtain (2), is equipped with atomizing spray thrower (3) on the ore ducts who catches dirt curtain (2) one side, be equipped with on the ore ducts who catches dirt curtain (2) opposite side and wash spray thrower (4) catch and still be equipped with passageway curtain door (2a) on dirt curtain (2). The utility model has the advantages of simple structure, it is convenient to make, and low in production cost is honest and clean, and purification and dust removal is effectual.