In the context of this work, the combustion properties of mixtures of pulverized coal and wastes were studied, under conditions simulating blast furnace injection (heating rate 105 K/s, residence time <20ms, final temperature 1500°C). The wastes used were PVC and residuals from scrap automobiles (shredded light fractions), in various proportions. The degree of combustion of the coal tested was dependent on the injection rate and the kind of the waste used. An increase in the amount of additive in the mixture resulted in a lower degree of burnout. For an economically acceptable degree of combustion near or below the stoichiometric amount of air, mixtures of pulverized coal with PVC or shredded light fractions in proportions up to 10% and 60%, respectively, can be used.