To provide a raw garbage treatment apparatus which does not necessitate to install a new water facilities upon installation of the apparatus and to carry out a water control upon operation of the apparatus.

In the raw garbage treatment apparatus which has a heating measure 10 that heats the raw garbage in a treatment container 1 with irradiation of microwave with at least a determined frequency and a crushing treatment measure 45 that cuts or crushes the heated raw garbage to small pieces like powders, and which heats, dries and powderizes the raw garbage in the treatment container 1, the apparatus consists of an exhaust air cooling measures 50, 106 which cool down the smelly exhaust air exhausted from the treatment container 1 by the heat exchange with outdoor air, an ozone generation measure 111 which produces the ozone in determined concentration and an ozone mixing measure 110 into which ozone produced by the above ozone generation measure 111 is introduced and mixed with the smelly exhaust air cooled by the exhaust air cooling measures 50, 106.