Gas-liquid mixer

The invention provides a gas-liquid mixer which comprises the following parts: a mixing part which is a cylindrical cavity with openings at two end parts; the microporous filter element is arranged in the cylindrical cavity and is used for decomposing gas and liquid; the bubble generating assembly is arranged at an outlet channel of the outlet end, the bubble generating assembly is composed of a flow gathering layer and a flow dividing layer which are stacked, and gas and liquid are fully decomposed and fused after passing through the bubble generating assembly; the microporous filter element is arranged in the mixing part, water flow and air flow in the cavity of the mixing part are rapidly converted into fine molecular groups through micro-nano-scale holes of the microporous filter element, so that hydrogen can be better dissolved into liquid to generate hydrogen-rich water, and in addition, the bubble generating assembly is arranged, so that the hydrogen-rich water is more effectively dissolved into the li