Dudley Giberson re-invented the ancient bead-making volcano furnace in the early 90's, using modern materials. We actually worked with one at Haystack in a workshop he gave there around 1992.
Dudley has drawings for building this type of burner in the book. "A Glassblower's Companion" by Dudley Giberson.
http://www.joppaglass.com/book/Lit_page.html#Dream)
He also has a video for sale of the "Volcano" being used at the bottom of that page.