Household energy-saving environment-friendly heat exchanger

The invention discloses a household energy-saving environment-friendly heat exchanger. The heat exchanger comprises a support, a solar heat collecting pipe, a living water inlet, a motor, a transmission rod, a heat inlet, a heat outlet, a water tank, an air inlet pipe, an air outlet pipe, an electric cabinet, a control switch, a heating wire, a temperature sensor, a water duct, a PLC and a storagebattery, wherein the living water inlet is arranged on one side of the top of the support. The heat exchanger is reasonable and scientific in structure, and safe and convenient to use; the solar heatcollecting pipe is arranged, so that solar energy is collected effectively and converted to heat energy for heating living water, thereby effectively saving energy, protecting environment and reducing usage cost; a heat collecting plate is arranged, so that the efficiency of light energy collecting is effectively improved, the living water is heated more rapidly and the efficiency of heat exchange is improved; and a filte