Tail gas treatment device for yeast fermentation tank

The utility model discloses a tail gas treatment device of a yeast fermentation tank, which belongs to the technical field of tail gas treatment of the yeast fermentation tank, is connected with an exhaust pipe at the upper end of a fermentation tank body, and is characterized in that the exhaust pipe is connected with an anti-suck-back structure; the suck-back prevention structure comprises a buffer chamber, a collection chamber and a reaction chamber; an air inlet pipe penetrates through a bottom plate of the buffer chamber and extends below the liquid level of the alkali liquor in the reaction chamber; the collecting chamber is connected with the water inlet end of the power draining pump; spoilers are arranged on the side wall of the collecting chamber; vent holes are formed in a bottom plate of the collecting chamber; the water outlet end of the power drainage pump is connected with the venturi scrubber; the tail gas treatment device disclosed by the utility model has the beneficial effects that the anti