The invention discloses a volatile organic compound purifying device adopting sintered metal powder as a carrier. The volatile organic compound purifying device comprises a fan, a gas collection cover and a sintered metal powder catalytic oxidation filtering unit, which are sequentially connected with one another, wherein the sintered metal powder catalytic oxidation filtering unit is internally provided with sintered metal powder filtering cores, a base material of the sintered metal powder filtering cores is formed by sintering 316L stainless steel powder at a high temperature, a layer of compact oxidation film is coated on the sintered base material, an Al2O3 coating is coated on the oxidation film, active components, platinum and V2O5, of a catalyst on the coating are completely and uniformly attached to the catalyst filtering core carrier in an ultrafine particle form, and finally, the catalyst filtering core carrier is sintered at a high temperature. Through the catalytic oxidation effect, the oxidation speed of volatile organic compounds and O2 can be enhanced, so that volatile organic pollutants are oxidized to water and carbon dioxide, and the amount of the discharged volatile organic compounds is far lower than the national emission standard after the volatile organic exhaust gas is processed.