Quenching and deacidification integrated device and hazardous waste incineration flue gas purification system

The utility model provides a quenching and deacidification integrated device and a hazardous waste incineration flue gas purification system, and relates to the technical field of hazardous waste incineration flue gas purification. The quenching and deacidification integrated device comprises a reaction tower; a spraying device is mounted at the top end of the reaction tower, and the inlet end of the spraying device is connected with a first liquid inlet pipe and a second liquid inlet pipe which are respectively used for conveying a cooling substance and a deacidification substance; a gas inlet pipe and a gas outlet pipe are arranged on the reaction tower; an output pipeline is arranged at the bottom end of the reaction tower and is used for outputting substances generated in the reaction tower; after flue gas enters the reaction tower through the gas inlet pipe, cooling substances and deacidification substances in the first liquid inlet pipe and the second liquid inlet pipe are fully mixed with the flue gas