Argon blowing and long nozzle

The utility model discloses an argon blowing and long nozzle, which comprises a long nozzle bowl body, a steel casing, and an argon blowing mouth which is on the outer wall of the steel casing. The argon blowing and long nozzle is characterized in that the periphery of the long nozzle bowl body which is aligned with the argon blowing mouth is provided with a vent groove and 4 to 8 vent holes, and the vent holes communicate with the vent groove and the inner wall of the long nozzle bowl body respectively. The argon blowing and long nozzle has advantages of being simple in structure, being ingenious in design, being capable of avoiding the phenomena of high pressure air in air inlet end and staying away from low pressure air in air inlet end, being good in air-sealing effect, and being able to form stable and uniform air curtain between the long nozzle bowl body and the ladle nozzle so that oxygen inhalation and nitrogen inhalation of the molten steel are avoided in the process of pouring.