Formaldehyde purification tower

The invention discloses a formaldehyde purification tower. The problems that conventional equipment is low in formaldehyde purification efficiency, an adsorption layer is extremely large, the utilization efficiency is low, and the like are effectively solved. The formaldehyde purification tower comprises a purification tower body, an absorber and a cyclone fan; the cyclone fan is arranged at the air inlet of the absorber; and the air outlet of the absorber is connected with the purification tower body. The formaldehyde purification tower disclosed by the invention is ingenious in structure, carbon granules contained in gases are absorbed and then formaldehyde gas is purified, so that pollution damage of the carbon granules on purification liquid is reduced, and the utilization rate of the purification liquid is improved; and moreover, an original integral adsorption structure is modified into a split structure, and the area of each single adsorption layer is reduced, so that the adsorption structure is fully