To prevent the solidification, stickiness and deposition of molten metal by forming a conical shaped iron-made formed case and a ceramic fiber fixed to the inner surface thereof and a fixed conical shaped refractory through the ceramic fiber.

The whole body of the iron-made formed case 11 is formed as the conical shape, and in this case, a comparatively large molten metal receiving part for receiving the poured molten metal 13 from the upper part and a comparatively small molten metal pouring hole 14, are arranged. The ceramic fiber for heat insulation is fixed on the inner surface of the formed case 10. The refractory 12 is integrally formed as the conical shape so as to be almost similar to the formed case 11. This refractory 12 is fixed to the inside of the formed case 11 through the ceramic fiber. A funnel for distributing molten metal is formed with the formed case 11, ceramic fiber for heat insulation and refractory. Further, a nozzle fitting part 15 for fitting so as to be changable to various sizes of the nozzles 17, is arranged in the discharging hole of the formed case 11.