The gassifying incineration of municipal solid waste（MSW） and coal mixture has been carried out in a selfdesigned gassifying incinerator

and taking air

oxygen

and steam as gassifying medium respectively. The NO

x

and SO

2

emission behavior in flue gas during period of gassifying incineration treatment under variation of affecting factors

such as materials

gassifying temperature

gassifying agent

and operation state of the burners etc.

has been analysed. Results show that the concentration of NO

x

and SO

2

in the flue gas is comparatively lower after secondary incineration treatment of the gassifying fuel. Under operation of the burners

the max. emission concentration of NO

x

to be 184 mg/m3

the max. emission concentration of SO

2

to be 57 mg/m3

they are far lower than defined value by the state

the effectiven

ess of incineration to decrease pollutan emission being remarkable.