NOVELTY - The apparatus has a reactor (1) comprising detachable reactor upper side main structure (2) and reactor lower side main structure (3). A zinc gas supply pipeline and silicon tetrachloride gas supply pipeline are connected to upper portion of reactor upper side main structure. A discharge port of waste gas is provided at lower portion of reactor upper side main structure or upper portion of reactor lower side main structure. The reactor lower side main structure is installed in four-directions, so that movement is possible.    USE - Manufacturing apparatus of polycrystalline-silicon used in solar cells by reducing silicon tetrachloride with zinc.    ADVANTAGE - The production of the polycrystalline silicon is performed efficiently in large quantities at low cost, by suppressing the reactor inactivity time to minimum in zinc reduction method performed for recovering the generated silicon in solid state.    DETAILED DESCRIPTION - A storage container is provided for accommodating the polycrystalline silicon in reactor lower side structure. A raising and lowering unit is provided at trolley. A conveyance mechanism is provided for conveying storage container in up-and-down direction or horizontal direction. A polycrystalline-silicon collection unit is positioned adjacent to reactor, for collecting the polycrystalline silicon from storage container. An INDEPENDENT CLAIM is included for polycrystalline-silicon manufacturing method, which involves allowing silicon-tetrachloride to react with zinc gas by connecting reactor upper side main structure and lower side main structure. The silicon growth structure produced by reaction of silicon-tetrachloride gas supply nozzle vicinity is desorbed. The polycrystalline silicon is collected from reactor lower side main structure, after disconnecting reactor lower side main structure from reactor upper side main structure.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the polycrystalline-silicon manufacturing apparatus.    Reactor (1)    Reactor upper main structure (2)    Reactor lower main structure (3)    Discharge port of waste gas (6)    Top plate (11)    Zinc gas supply nozzle (12)