Abstract: Modern coal chemical industry is a new industry based on traditional coal chemical industry, which is oriented by clean utilization and efficient transformation of coal. During the 13th Five-year Plan period, China's modern coal chemical industry is still at the demonstration stage. Typical dry pulverized coal bed gasification technology is an important technology in modern coal chemical industry. Through the analysis of the pollutant discharge characteristics of the whole process and from the perspective of source control, the suggestions for optimizing the selection of raw and auxiliary materials and optimizing the process structure design and equipment selection were put forward. From the perspective of process control, the suggestions of key parameters of process control operation, enhancement of routine inspection and optimization of pollution source discharge were put forward. From the perspective of end-of-pipe treatment, the corresponding treatment technologies of main discharge links of pollutants were listed.