To provide a cleaning deodorization system, of treatment facilities, which ensures efficient deodorization results by performing the cleaning and deodorization of a plurality of properly selected spots, using ozone water, ozone mist, etc.

An ozone water cleaning device 21 and a floor surface ozone water cleaning device 22 which clean contaminants etc. flowing out of waste by spraying the ozone water, are installed in waste treatment facilities where a waste treatment device is set inside a building 10 equipped with a roof fan 13. In the waste treatment facilities, further, a deodorization device 20 for deodorizing locally, a first ozone mist sprayer 24 which sprays an ozone mist to the inner space of the building 10 and a second ozone mist sprayer 25 which sprays an ozone mist in the gyrating current direction of the roof fan 13. are installed. Thus a plurality of the spots are cleaned and deodorized in multi-stage fashion.