blast furnace

noun
  1. a large vertical furnace for smelting iron from ore, using coke as fuel: designed so as to direct a continuous blast of air through the fuel in order to obtain a high rate of combustion.

Origin of blast furnace

First recorded in 1700–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for blast furnace

blast furnace

noun
  1. a vertical cylindrical furnace for smelting iron, copper, lead, and tin ores. The ore, scrap, solid fuel, and slag-forming materials are fed through the top and a blast of preheated air is forced through the charge from the bottom. Metal and slag are run off from the base
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