Multistage cleaning and deodorizing system for air in livestock and poultry houses

The utility model discloses a multistage cleaning and deodorizing system for air in a livestock and poultry house. The device is arranged above a livestock and poultry house building. The device is composed of a waste gas collecting chamber (3), a first-stage cleaning chamber (7) and a second-stage cleaning chamber (12). Wherein the waste gas collecting chamber (3) is the lowermost layer of the system and is a space formed by a dosing water tank (4) at the bottom, a dosing water curtain (10) at the upper part and four wall bodies, the dosing water curtain (10) is arranged at the bottom of theprimary cleaning chamber (7), a microbial curtain (11) is arranged at the upper part, and the peripheral wall bodies are sealed; a microorganism curtain (11) is arranged at the bottom of the secondarycleaning chamber (12), a plurality of chimney-shaped air outlets (14) are formed in the upper part of the secondary cleaning chamber (12), and peripheral walls are sealed. According to the multistagecleaning and deodorizing s