This silo distributor is built with a stainless steel fan, which is smooth and not easy to stick wool,corrosion-resist, and has long service life; the distributor is controlled by PLC and realizeautomatic switching of silos in conjunction with the intelligent silo under the control of the system,in order to avoid the problem of wool clamping and easy error caused by manual switching, andto keep a very low error-tolerant rate.