NOVELTY - Manufacturing a high purity polycrystalline silicon using an apparatus (10), comprises: supplying a silicon chloride gas from a silicon chloride gas supply nozzle and a zinc gas from a zinc gas supply nozzle into a vertical reactor; and generating downward a polycrystalline silicon agglomerated in an almost tube shape on the leading end part of the silicon chloride gas supply nozzle by a reaction of the silicon chloride gas and the zinc gas.    USE - The method is useful for manufacturing polycrystalline silicon (claimed), which is useful as a raw material of silicon for a solar cell and a semiconductor.    ADVANTAGE - The method provides high purity polycrystalline silicon continuously at a low cost in great quantities. The apparatus for gasifying zinc can be miniaturized and an energy loss can be reduced.    DETAILED DESCRIPTION - Manufacturing a high purity polycrystalline silicon using an apparatus (10), comprises: supplying a silicon chloride gas from a silicon chloride gas supply nozzle and a zinc gas from a zinc gas supply nozzle into a vertical reactor; and generating downward a polycrystalline silicon agglomerated in an almost tube shape on the leading end part of the silicon chloride gas supply nozzle by a reaction of the silicon chloride gas and the zinc gas. The apparatus comprises: a vaporizer of silicon chloride; a fusing evaporator of zinc; a vertical reactor provided with a heating means on the peripheral face of it; a silicon chloride gas supply nozzle disposed to connect the vaporizer of silicon chloride and the vertical reactor and for supplying a silicon chloride gas supplied from the vaporizer of silicon chloride into the vertical reactor; a zinc gas supply nozzle disposed to connect the fusing evaporator of zinc and the vertical reactor and for supplying a zinc gas supplied from the fusing evaporator of zinc into the vertical reactor; and an exhaust gas vent pipe connected to the vertical reactor. The fusing evaporator of zinc comprises: a zinc evaporator; a main vertical cylinder part connected to the upper part of the zinc evaporator; a solid trapping pipe inserted into the main vertical cylinder part; a zinc introducing pipe connected to the solid trapping pipe at an angle; a seal pot disposed to surround the lower end opening portion of the solid trapping pipe and for configuring the bottom face of solid trapping pipe; an induction heater disposed on the peripheral face of the main vertical cylinder part and capable of controlling a temperature; and a gas vent pipe connected to the side wall of the zinc evaporator.    DESCRIPTION OF DRAWING(S) - The figure shows a partially cross-sectional view of an apparatus for manufacturing polycrystalline silicon.    Apparatus (10)    Water-cooled reaction vessel (30)    Silicon seed rod (50)