When the incineration line stops running, the incineration line will no longer extract air from the garbage pool, or the extracted air cannot maintain the negative pressure of the garbage pool. In this case, operate the emergency deodorization system of the garbage pool. Through the odor collection air duct arranged above the garbage pit, the system draws the odor in the garbage pool into the deodorization device, uses activated carbon to adsorb the odor components in the air to achieve the deodorization effect, and then is extracted by the deodorization fan for high-altitude discharge.