Air purifier capable of eliminating fitment pollution

The utility model discloses an air purifier which can eliminate fitment pollution. The utility model comprises a negative pressure generating device, a reaction device and a water replenishing device, wherein a casing of the negative pressure generating device is respectively provided with a wind inlet and a wind outlet; the reaction device is arranged between the wind inlet and the wind outlet closely to the wind inlet in a detachable way; the water replenishing device is arranged in the way of being communicated with the reaction device avoiding the wind inlet. The utility model adopts a fire-new purifying principle, can effectively eliminate harmful gases such as formaldehyde, ammonia gas, benzene series, etc., which harms human bodies, can purify the inhabited environment, can maintain human health, has the advantages of simple structure and convenient use, and simultaneously has the characteristic of long time use.