Waste gas catalytic combustion device

The utility model discloses a waste gas catalytic combustion device which comprises a bottom plate, and a shell is installed on the top of the bottom plate. The bottom plate, the shell, the partition plate, the combustion chamber, the heat storage chamber, the catalytic combustor body, the heat exchange mechanism, the gas inlet pipe, the gas outlet pipe, the first heat exchange pipe, the breather pipe, the second heat exchange pipe, the filter assembly, the filter box, the filter screen and the exhaust pipe are matched with one another, and water in the heat exchange mechanism can absorb heat generated in the catalytic combustion process of waste gas; the temperature of exhausted air is reduced, the situation that the air with high heat is directly exhausted, and consequently the outdoor air temperature is too high is avoided, energy loss is reduced, waste gas in the gas inlet pipe can be preheated through the heat storage chamber, the energy-saving and environment-friendly effects of the device are improved,