Gas absorption tower and application method thereof

The invention relates to processes of absorbing, washing and treating waste gas in the technical field of chemical industry, oil refining and environmental protection and in particular relates to a gas absorption tower and an application method thereof. The gas absorption tower comprises a gas absorption device (1), wherein the gas absorption device (1) is provided with a pore plate (7) and more than three gas absorption tubes (8); opening ends of the gas absorption tubes (8) are fixed in mounting holes of the pore plate (7); absorption holes are uniformly formed in the gas absorption tubes (8); the pore plate (7) is used for partitioning the gas absorption device (1) into a gas absorption area (9) and a to-be-absorbed gas area (10). As the gas absorption tower is used for absorbing the gas, the contact area between a gas phase and a liquid phase in unit volume can be increased; the gas absorption is improved and the production efficiency is improved; the gas absorption tower is simple in structure, convenien