The invention relates to the technical field of rectification, and especially relates to a self-cleaning rectifying tower. The self-cleaning rectifying tower comprises a tower body, a material storagebox and fixing frames, the material storage box is arranged on the left side of the tower body, a stirring motor is mounted above the storage box, a filter cartridge is mounted in the middle positionin the material storage box, the upper end of the filter cartridge is hermetically connected with the sidewall of a material storage barrel, the output shaft of the stirring motor is connected with one end of a stirring shaft through a shaft coupling, the other end of the stirring shaft is arranged in the filter cartridge, the two fixing frames are detachably connected with the tower body, a redistributor is arranged in the tower body between the two fixing frames, and an upper silk screen packing layer and a lower silk screen packing layer are arranged in each of the two fixing frames. The material storage box and the fixing frames are arranged to facilitate self-cleaning of the tower body, so the production quality is guaranteed, and the production efficiency is improved.