provides a water injection apparatus for producing a metal powder. According to the present invention , the metal inside the molten steel is stored , that is equipped with an orifice for discharging the molten metal in the tundish bottom ; A first step 1 the number of nozzles for ejecting a jet can first downwardly relative to the first stem, the molten steel falling through the orifice of the tundish ; And the first number of jets and the first collision , and then a second number of nozzles for ejecting the second stage 2 for a given distance can jet downward movement of the second steel stem . ; 展开▼