The present invention relates to a multi-process deodorization system comprising: a supply line providing a route on which odor is transferred by a first pump； a rotary absorption unit installed on the supply line and having a rotary drum installed inside a housing to be rotatable, a ventilation structure formed in the rotary drum so as to allow the odor passing through the housing by the supply line to pass through the rotary drum, an absorption member stored inside the rotary drum so as to absorb the odor passing through the housing, and a rotation driver rotating the rotary drum； a circulation line providing a route on which the odor is circulated and supplied by a second pump in the housing； and a plasma generator receiving the odor in the housing and the rotary drum and removing the odor. Through the multi-processing system in which the absorption member of the rotary drum absorbs and the plasma circulates and again removes a high concentration of odor, of which a concentration is increased due to the absorption and removal of the low concentration of odor, inside and outside the rotary drum, the present invention can intensively and continuously remove the low concentration of odor, effectively remove the low and high concentrations of odor and volatile organic compounds (VOC), thereby maximizing the improvement of air quality. Further, the present invention can minimize the costs and endeavors required for system maintenance and management. [Reference numerals] (140) Controller； (150) Alarm generator； (AA) Low-concentration odor； (BB) High-concentration odor본 발명은 악취가 제 1 펌프에 의해 이송되는 경로를 제공하는 공급라인； 공급라인 상에 하우징이 설치되고, 하우징의 내측에 회전드럼이 회전 가능하게 설치되며, 공급라인에 의해 하우징을 통과하는 악취가 통과할 수 있도록 회전드럼에 통기구조가 형성되고, 회전드럼을 통과하는 악취를 흡착하기 위한 흡착재가 회전드럼의 내측에 저장되며, 회전드럼을 회전시키는 회전구동부가 마련되는 회전흡착부； 하우징에 악취가 제 2 펌프에 의해 순환 공급되는 경로를 제공하는 순환라인； 및 순환라인 상에 설치되고, 순환라인을 통해서 하우징 및 회전드럼 내의 악취를 순환 공급받아 플라즈마에 의해 제거하는 플라즈마발생부를 포함하도록 한 다중 처리 탈취 시스템에 관한 것이다.본 발명에 따르면, 비교적 저농도의 악취를 회전하는 회전드럼의 흡착재에 의해 흡
