Petrochemical flue gas absorption device

The utility model discloses a petrochemical flue gas absorption device, particularly relates to the technical field of petrochemical processing, and aims to overcome the defects that most filter plates in the conventional absorption device are inconvenient to disassemble, so that the filter plates are inconvenient to replace in the later period, and the normal development of flue gas treatment operation cannot be guaranteed. Most of existing absorption devices only adopt a filter plate absorption and filtration mode to treat flue gas, the absorption mode is single, the absorption effect is poor, the absorption device comprises an absorption box, an air inlet pipe is fixedly inserted into the lower end of one side of the absorption box, the tail end of the air inlet pipe communicates with a concentric-square-shaped pipe, and the concentric-square-shaped pipe is fixedly connected with the absorption box; a stirring mechanism is arranged on the side, away from the air inlet pipe, of the absorption box, under the