Water purifying and drinking machine with accurate water temperature

The water dispenser comprises a filtering water tank, a water outlet valve, a water return valve, a heater, a three-way valve, a drainer and a control unit, the water outlet valve and the water return valve are respectively connected to the filtering water tank; the water outlet valve is connected with an inlet of the heater; the three-way valve is respectively connected with an outlet of the heater, the water return valve and an inlet of the drainer; the control unit is electrically connected with the water outlet valve, the water return valve, the heater and the drainer and controls the water outlet valve, the water return valve, the heater and the drainer to be opened and closed. Compared with the prior art, the water purifying and drinking machine with the accurate water temperature can prevent residual water from influencing the water temperature of water supplied next time, and the accuracy of the water temperature of the water supplied is improved. 一种水温精准净饮机，包括过滤水箱、出水阀门、回水阀门、加热器、三通阀、排水器以及控制单元；所述出水阀门、所述