Lower guide chaff tube for rice polisher windmill

A lower guide chaff tube for a rice polisher windmill comprises a strip-shaped tube body, wherein an inlet groove sleeved on an outlet tube of the windmill is formed at the upper end of the back surface of the tube body; a plurality of small vent holes in netted distribution are formed at the upper end of the front surface of the tube body; and a chaff outlet is formed at the lower end of the tube body. The utility model has the advantages that chaff blown from the windmill falls along the tube body and is then exported from the lower end chaff outlet, thereby reducing the phenomenon of flying chaff particles, cleansing the air, and contributing to environmental protection and the physical health of workers.