Fixed pollution source emission monitoring system and fixed pollution source emission monitoring method

The invention provides a fixed pollution source emission monitoring system and a fixed pollution source emission monitoring method. The monitoring system adopts a dewaterer, at least two pipelines and sulfonic acid side chains, wherein the dewaterer comprises a first container, and the first container is provided with a first air inlet, a second air inlet, a first air outlet and a second air outlet; the at least two pipelines are arranged in the first container, inlets of the at least two pipelines are communicated with the first air inlet, and outlets of the at least two pipelines are communicated with the first air outlet; the at least two pipelines are made from a copolymer of polytetrafluoroethylene and perfluoro-3, 6-diepoxy-4-methyl-7-decene-sulfuric acid, wherein the sulfonic acid side chains are combined on the inner walls of the at least two pipelines. The fixed pollution source emission monitoring system provided by the invention has the advantages of simple structure, high detection precision and the like.