The invention discloses a combined
oil mist purifying unit of an air conditioner. The combined
oil mist purifying unit comprises an air return filtering part and a
fresh air conveying part, wherein the oil return filtering part is used for performing suction filtering on air in a workshop and filtering
oil mist particles and comprises an air return section, an oil mist filtering section, a peculiar smell purifying section, an air return fan section and an exhaust regulating section which communicate in sequence; the
fresh air conveying part is used for feeding clean
fresh air into the workshop and regulating the temperature of the air, and comprises a fresh air regulating section, an air filtering section, a temperature adjusting section, an air feeder section and an air feeding section which communicate in sequence; the exhaust regulating section and the fresh air regulating section communicate by an air mixing valve; and an
exhaust valve and a fresh air valve are jointly arranged on a
thermal recovery section. According to the combined oil mist purifying unit disclosed by the invention, by organically combining oil mist purification and the air conditioner, exhausting and
thermal recovery can be realized; in addition, no cross
contamination exists in the fresh air and the exhausted air; and the temperature and the
air volume can be adjusted according to the technological requirements. The combined oil mist purifying unit has the functions of utilizing
waste heat of the unit and purifying waste gases, and has the advantages of safety, reliability, reduction of
pollution, convenience in technological operation and high degree of
automation.