To clean exhaust gas contg. pollutants such as floating particulate matters, particulate matters, and various toxic chemical substances.

In this cleaning apparatus, exhaust gas is sucked in a container from a suction hole 14 provided with a suction fan 12 and exhaust gas flow moving from the suction hole to an exhaust hole 15 is passed through buffle plates 17, 18 and 19 sucking an exhaust gas absorbing chemical liq. L stored in the container and having through-holes for passing the exhaust gas through on their main faces. It is possible thereby to remove pollutants in the exhaust gas flow and to exhaust the cleaned exhaust gas from the exhaust hole 15.