The Minecraft 1.14 update introduced blast furnaces, which are used to smelt ore, as well as armor and tools. While you can find such stoves in the villages, it's best to make your own.
To craft a blast furnace, you will need;
A blast furnace works in a similar way to a regular furnace: you need the resource that you want to smelt, as well as fuel. Just put them in a blast furnace and the melting process begins. Its melting rate is twice as fast as a conventional furnace, but the blast furnace uses twice as much fuel, so keep that in mind!
