Disposal of waste materials, especially garbage. has become a more serious problem in present society because of incombustibility and insanitariness. In order to solve this problem, a compact and odorless burning processor has been developed that furnishes an innovative solution to the problem by disposing of waste at the place where it is generated. In this processor, waste materials are dried and decomposed into gas by means of microwave energy. The gas generated is burned in a sanitary way, leaving only a small amount of ash.