Air pollution purification engineering system

The utility model discloses an air pollution purification engineering system which comprises a decomposition tank, a spraying device, an input tube and an output tube, wherein a waste gas can be fed into organic biological decomposition liquor inside the decomposition tank through the input tube; organic solvent volatile gases and organic odor molecules in the waste gas are removed through decomposition of the organic biological decomposition liquor; subsequently the purified air is gradually risen, the secondary decomposition purification can be implemented through the filtering layers in the decomposition tank, and thus incompletely purified parts can be removed; finally, the purified air is further decomposed and filtered by using microorganism air filter cores, and is discharged out through the output end of the output tube. Therefore, the purposes of effectively purifying, decomposing and removing organic solvent volatile gases, organic odor molecules and suspended particles in air in waste gases can be achieved.