Dustproof FFU laminar flow air supply unit

The utility model discloses a dustproof FFU laminar flow air supply unit, and relates to the technical field of air purifying and filtering devices. Comprising an upper box body, a lower box body and a protective cover, the bottom of the upper box body is connected with the lower box body in a clamped mode, the center of the top of the upper box body is in threaded connection with the protective cover, mounting blocks are fixedly connected to the two sides of the bottom of the upper box body, flanges are arranged on the two sides of the lower box body, the mounting blocks are connected with the flanges, and a containing cavity is formed in an inner cavity of the upper box body; a draught fan is arranged in the containing cavity, a high-efficiency filter is arranged in an inner cavity of the lower box body, and an air outlet is formed in the bottom of the lower box body. The dustproof FFU laminar flow air supply unit has the advantages that dust is effectively prevented, dust is prevented from being accumulate