Blast furnace work involves the flow of enormous volumes of raw materials. Modifications of the blast furmace operation parameters can bring about savings connected with materials consumption and also a reduction of production costs. The continuous technical-economic analysis of this process enables changes in the process to be observed by means of simple indexes. In this article, a technical-economic analysis of the blast furnace process is presented. It is based on the results of a Polish blast furnace with an overall capacity of 3200m3.