The invention relates to an immersed pipe bundle mixing and top-blowing spray gun and belongs to the technical field of nonferrous metal smelting. The immersed pipe bundle mixing and top-blowing spray gun comprises a pipe bundle mixing section (1), three or more than three same multi-fluid interfaces (2) which are formed in the top part or tin he annular lateral direction of the pipe bundle mixing section (1), a mixed fluid straight-through section (3) which is connected with the pipe bundle mixing section (1), a rotational flow section (4) in which a cyclone is arranged and which is connected with the mixed fluid straight-through section (3), and a hollow turbulent flow section (5) with one end which is connected with the rotational flow section (4) and the other end which is opened. The immersed pipe bundle mixing and top-blowing spray gun has the beneficial effects that the structure is simple, the spray gun is convenient to manufacture, the cooling strength is high and the service life is long; the effect of mixing multiple fluids in the spray gun is realized and the nonferrous metal smelting efficiency is improved; since the turbulent flow section (5) is a layer of pipe, when the turbulent flow section is buried in a fire metallurgy container and is partially lost, only the end part needs to be trimmed flat, another section is reconnected, the turbulent flow section can be put into use again and the smelting operating cost is greatly reduced.