smelter

/S M EH1 L T ER0/
noun
  1. 1

    A person employed to do smelting.

    โ€œHe works as a smelter.โ€

  2. 2

    A machine used to smelt metal.

    โ€œThrow the scrap in the smelter so we can melt it down and reuse it.โ€

  3. 3

    A place where smelting is done.

    โ€œWe'll take the scrap to the smelter and get some money for it.โ€

Source: https://en.wiktionary.org/wiki/smelter