Hydrogen-rich water gas water heating equipment

The utility model relates to hydrogen-rich water gas water heating equipment, which is characterized in that a communicating pipe is connected between a second water outlet pipe and a filter, and a control valve is arranged on the communicating pipe. When the hydrogen-rich water gas water heating equipment operates normally, the control valve is in a closed state, and communication between the second water outlet pipe and the liquid collecting piece is cut off. As the control valve is in a closed state, the weakly acidic water is accumulated in the electrolysis device. The concentration of the weakly acidic water is higher and higher along with the pumping of the weakly alkaline water from the first water outlet pipe. When the hydrogen-rich water gas water heating equipment stops running, the control valve is opened, the second water outlet pipe is controlled to be communicated with the liquid collecting piece, weak acid water enters the liquid collecting piece so that the weak acid water and filtered waste w