Automatic drainage structure of water dispenser

The utility model belongs to the technical field of water dispensers, and particularly discloses an automatic drainage structure of a water dispenser, which comprises a drainage box arranged on a dispenser body, an upper cover covers the top of the drainage box, and a filter plate is accommodated in the drainage box. The upper end and the lower end of the interior of the drainage box are separated by the filter plate to form an upper cavity and a lower cavity in sequence, a water pump is arranged outside the drainage box and communicated with the lower cavity through a water outlet pipe, and a water outlet pipe is arranged at the water outlet end of the water pump. According to the automatic drainage structure of the water dispenser, the water pump is used for automatically pumping water in the drainage box, the water in the drainage box is prevented from overflowing, meanwhile, the filter plate is arranged in the drainage box, the water outlet position of the drainage box is prevented from being blocked, it