Anti-blocking washing tower

The utility model discloses an anti-blocking washing tower, which belongs to the field of washing tower equipment for polycrystalline silicon production, and comprises a tower body, the tower body is a hollow cylinder, the lower part of the tower body is provided with a gas inlet, the gas inlet is connected with a gas distributor extending into the tower body, the gas distributor is provided with a plurality of nipples with downward openings, and the nipples are connected with the gas distributor. A plurality of tower trays are arranged at the middle upper part in the tower body, sieve pores are distributed on the tower trays, and the aperture of the sieve pores on the lower tower tray is larger than that of the sieve pores on the upper tower tray; the problems that in the prior art, a washing tower is used for washing impurities in high-temperature process gas containing silicon powder, metal chloride, chlorosilane and high-boiling residues generated in polycrystalline silicon production, the effect is poor,