This patent is involved in a pyrometallurgical equipment of oxygenenriched air sideblown bath smelting furnace, applicable in the nonferrous metallurgical industry, especially fit for Cu and Ni concentrate smelting. The furnace consists of two rows of steel frames vertically installed on the ground, between which there are hearth, shaft and furnace top. This furnace is characterized by good environment, low energy consumption, continuous operation and highlevel automation.