Water purifying and drinking machine with bidirectional non-return structure

A water purifying and drinking machine with a two-way check structure comprises a water storage tank, a two-way check valve and a water temperature regulator. The two-way check valve is positioned between the water storage tank and the water temperature regulator; the two-way check valve comprises a first valve core, a first connecting seat and a second valve core; the first valve core covers the outlet of the water storage tank and slides relative to the water storage tank; the first connecting seat communicates with the water storage tank outlet and the water temperature regulator; the second valve element is located in the side, close to the outlet of the water storage tank, of the first connecting base and connected with the inner wall of the first connecting base. When the water storage tank is installed, the second valve element jacks up the first valve element to open an outlet of the water storage tank, and meanwhile the first valve element presses the second valve element open to open an inlet of the