Self-circulation water-heated air conditioner

The utility model provides a self-circulation water-heated air conditioner which has simple structure, convenient use and low cost, is applicable to household and can allow the water-heated air conditioner for heating in winter. The self-circulation water-heated air conditioner consists of a radiator, a fan, a shell, and the like, wherein, a watering tank is arranged at the upper end at the back of the shell or inside the box at the upper end at the back of the shell, and an electric heater is arranged at the lower end at the back of the shell or at the lower end in the shell; the bottom of the watering tank is connected with the water inlet of the radiator of the air conditioner and the upper end of the electric heater through a water pipe by virtue of a three-way pipe, and the water outlet of the radiator of the air conditioner is connected with the lower end of the electric heater by the water pipe; and the electric heater is a steel cylinder which is internally provided with a 1kw-4kw heating tube and a t