NOVELTY - A silicon refining apparatus comprises a heating unit (5) to heat silicon in a processing chamber (2) with a pressure reduction unit which reduces pressure inside the processing chamber, a crucible (4) which is positioned in the processing chamber interior and accommodates silicon, an impurity capture apparatus containing an impurity condensation part (7) which cools and condenses impurity vapor evaporating from liquid of molten silicon metal (3), and an antipollution device which has an impurity catching part (8) for receiving impurity and prevents contamination of molten silicon metal.    USE - A silicon refining apparatus for purifying metallic silicon raw material with high impurity concentration and producing high purity silicon used for solar cell manufacture.    ADVANTAGE - High purity silicon is produced stably at low cost.    DETAILED DESCRIPTION - A silicon refining apparatus comprises a heating unit (5) to heat silicon in a processing chamber (2) with a pressure reduction unit which reduces pressure inside the processing chamber, a crucible (4) which is positioned in the processing chamber interior and accommodates silicon, an impurity capture apparatus containing an impurity condensation part (7) which cools and condenses impurity vapor evaporating from liquid of molten silicon metal (3), and an antipollution device which has an impurity catching part (8) for receiving impurity and prevents contamination of molten silicon metal. Impurity in molten silicon metal heated under reduced pressure is removed through evaporation. The impurity catching part of antipollution device is in a stand-by position during silicon refinement process. The impurity catching part of the antipollution device is located between the impurity condensation part of the impurity capture apparatus and liquid level of molten silicon metal. An INDEPENDENT CLAIM is included for a silicon purification method which involves removing impurity in silicon by using the silicon refining apparatus, wherein impurity is evaporated from liquid of molten silicon metal, impurity is captured by the impurity capture apparatus of the silicon refining apparatus, and contamination of molten silicon metal is prevented by the antipollution device of the silicon refining apparatus.    DESCRIPTION OF DRAWING(S) - The drawing shows a conceptual diagram of the silicon refining apparatus.    Processing chamber (2)    Molten silicon metal (3)    Crucible (4)    Heating unit (5)    Impurity condensation part (7)