The invention relates to a
pyrometallurgy process for
copper, lead and
zinc mixed concentrate, comprising the steps that: 1) lead separation,
sulfur fixing and melting are carried out; a
sulfur-fixed agent is added for burdening; furnace burden after burdening is put into a
melting furnace; a melting reaction is carried out at a temperature of 1000 to 1100 DEG C, and crude lead and
slag sulfur are obtained; the crude lead is separated; 2) the
slag sulfur is separated and melted; rest
slag sulfur is separated and melted in reduction
atmosphere in a
blast furnace and in the condition of high-
calcium slag type;
zinc in the slag is reduced to be
metal zinc which enters into fume when being volatilized, and is recycled by a dust precipitator in a state of zinc
oxide; the temperature of the
focal area of the
blast furnace is increased so as to cause the slag sulfur to be separated and fully react; the crude lead,
copper mattes and the slag are fully separated. The process solves the technical problem that current
pyrometallurgy process of the background technology can not meet the melting of
copper, lead and zinc mixed concentrate with a copper content higher than 2 percent. The process is characterized by advanced process procedure, being
environmentally friendly and having high resource recycling rate.