Humidifying apparatus

A humidifying apparatus, comprising:

• a water tank having a water storage chamber;
• a water pump, a water inlet of the water pump being adapted to communicate with the water storage chamber;
• a wet curtain assembly disposed above the water storage chamber and having a water supply port and a drainage port;
• a water passage structure being an integrated structure, and comprising a water inlet channel and a return water channel spaced apart from each other, wherein an upper end of the water inlet channel is connected to the water supply port, an upper end of the return water channel is connected to the drainage port, a lower end of the water inlet channel is connected to a water outlet of the water pump, and a lower end of the return water channel is in communication with an inside of the water storage chamber.