Solar water heater capable of rapidly discharging hot water

The utility model relates to a solar water heater capable of rapidly discharging hot water and belongs to the technical field of energy-saving equipment. A water tank water outlet and a water tank backflow port are formed in the bottom and the side face of the solar water tank respectively, the water outlet pipe is communicated with the water tank water outlet and a water using position water outlet point, the backflow pipe is communicated with the water using position water outlet point and the water tank backflow port, the water outlet pipe is communicated with the backflow pipe, a booster pump is installed on the water outlet pipe, and a backflow electromagnetic valve is installed on the backflow pipe. A backflow temperature probe is installed on the backflow pipe between the backflow electromagnetic valve and the water outlet point of the water using position, and a water tank temperature probe is installed in the solar water tank. The water tank temperature probe and the backflow temperature probe are us