Airflow-stabilizing air knife of high-speed tin coating machine

The invention relates to an airflow-stabilizing air knife of a high-speed tin coating machine. The airflow-stabilizing air knife mainly comprises a knife body base, air knife connection boards, air knife main boards, air knife cover boards and the like. Two air knife modules are installed on the knife body base by a certain angle; when the air knife device works, high pressure air is input from air inlet connectors of the knife body base, passes through an air path of an inner cavity of the knife body base, is output to connection board air guide grooves through air passing holes of the knife body base, then is output into air passing round holes of the air knife main boards through the connection board air guide grooves and is output from air knife edges through curve air guide grooves of the air knife main boards, so that air curtain walls with a certain angle and uniform and stable airflow are formed; and a copper wire soaked with molten tin moves in the crossed center direction of the air curtain walls al