Tail gas purification device used in factory building

The invention provides a tail gas purification device used in a plant, and relates to the technical field of tail gas treatment equipment. The tail gas purification device used in the plant comprises a main fixing mechanism, stable sealing mechanisms and a filtering and deodorizing mechanism, the two stable sealing mechanisms are arranged on the left side of the main fixing mechanism, and the filtering and deodorizing mechanism is arranged in the stable sealing mechanisms. The two first sliding tables can slide in the opposite direction at the same time along two sliding clamping rails additionally arranged on the connecting plate through additionally-arranged limiting sliding grooves, vibration is eliminated due to movement of the two first sliding tables and damping buffering of two damping rods, and the risk of leakage is reduced; and through diffusion contact filtration of two times of gas, the direct filtration area of the gas is increased, so that through type filtration is uniformly carried out, and th