Abstract: According to a self-designed simulating combustion-dilution sampling system，different residential coals with different combustion states from Henan，Shanxi，Shaanxi and Wuhan were chosen，the emission particles and gaseous pollutants of two kinds of bituminous coal，two kinds of anthracite coal，two kinds of honeycomb briquette and one kind of briquette were collected. The combustion emissions of different coals were compared and analyzed. The results showed that the combustion emission particles from different kind of coal were obviously different during firing；the emission factors of PM₁₀ from bituminous coal were higher than those from anthracite coal and honeycomb briquette. The emission factors of PM₁₀ were positively correlated with the volatile content in coal. The emission factors for gaseous pollutants from different kinds of coal were not obvious correlated with the form of coal，and the emission of SO₂ was positively correlated with the sulfur content in coal. The influence of different combustion states on the gaseous pollutant emission was not obvious.

Key words: residential coal combustion, PM₁₀, emission characteristics, emission factors, gaseous pollutants, pollutant emissions