Abstract: This paper described the combustion characteristics of pulverized coal injection (PCI) in the blow pipe tuyere assembly using injection patterns are simulated, to improving the practical performance of the blast furnace. In these study a three dimensional mathematical models has been developed based on computational fluid dynamics software gambit & fluent. The model was capable of handling steady state, three dimensional multi phase flow of pulverized coal injection. The model was applied to simulate the flow pattern of the pulverized coal inside the tuyere. The information including mean temperature distribution and combustion characteristics has been obtained in details.