PURPOSE: A hot blast valve for a blast furnace is provided to easily repair with only simple replacement of a passage part where the repairing is completed because the passage part is formed to an independent unit body and is deformed to be disassembled from a body. CONSTITUTION: A hot blast valve for a blast furnace comprises a body(10) having stopper units(15), contact rings(30), bolts(40), and a firebrick. The stopper units respectively have a protrusion(14) inside a flange(11) and form connection holes(16) in the outer circumference. The contact rings guides the vertical movement of a disc. The bolts fix the contact rings in an assembled state. The firebrick is attached in the inner surface of the body to prevent thermal deformation of the body.
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