Humidification assembly and air purifier

The embodiment of the invention provides a humidifying assembly and an air purifier. The humidifying assembly comprises a humidifying disc, a water tank, a first water tank and a valve. The first water tank is arranged above the water tank and is used for supplying water to the water tank; at least part of the humidifying disc is arranged in the water tank and does not make contact with the bottom of the water tank; the humidifying disc comprises a wet curtain and is used for adsorbing water in the water tank for humidifying; an opening is formed in the bottom of the water tank, and the valve is arranged below the water tank and used for enabling the water tank to store water or drain water. According to the embodiment of the invention, when the humidifying assembly stops working, water in the water tank can be discharged, so that the water tank and a wet curtain of the humidifying disc are quickly air-dried, the problems of scaling and fading of the wet curtain, dirt blockage, mildewing of the water tank and