Basically, assuming you have all of modern human knowledge about smelting iron/steel, and the technology level you have is approximately bronze age, what would be the most effective approach to turn iron ores into usable iron tools? Specifically, the approach that would result in the highest quality result, as well as be as easy as possible to do at a large scale (if these don't conflict).
You can assume the technology available includes clay or adobe bricks, pottery, copper and bronze tools, and anything else a later bronze age civilization could be expected to have, in addition to whatever knowledge is needed for the process (this is handwaved, there doesn't need to be a plausible reason they'd know how to do it).
From what I've read, bloomery furnaces with charcoal as fuel were almost always the first ones to be used when civilizations entered the iron age. However, since we now know about all sorts of methods of making iron and steel, I'm wondering if that knowledge could be exploited without today's existing infrastructure. For example, using coke instead of charcoal, or preheating the air used in the furnace, or even using a blast furnace immediately instead of starting out with bloomery furnaces.
I'm not too knowledgeable about this sort of thing, but it's important for a story I'm writing. Any ideas?