The present invention relates to an apparatus for peeling a Welsh onion, which can be easily used due to a simple structure while increasing the efficiency of peeling a Welsh onion, and can easily collect and discard by-products such as the peeled skin of a Welsh onion, soil, etc. The apparatus comprises: a frame; a suction body which is fixedly installed in the frame, has a hollow interior as front and rear sides thereof are opened, and includes an air inlet hole formed on one outer circumferential surface thereof to penetrate therethrough in order for compressed air to be introduced into the inside; a nozzle body which has a cylindrical shape and inserted and coupled to the inside of the front side of the suction body, has a ring-shaped air deliver groove formed to be recessed on the outer circumferential surface thereof to be connected with the air inlet hole of the suction body, and includes a plurality of air injection holes that are radially formed at a rear end thereof to penetrate therethrough to be individually connected with the air delivery groove, so as to peel the skin of a Welsh onion that is inserted into the inside of the front side of the suction body; and a discharge tube which is coupled to a rear end of the suction body by a nipple to discharge the peeled skin of the Welsh onion to the rear side. The nipple is in the shape of a venturi tube formed so that a reduced diameter portion of the inside of the front side and an enlarged diameter portion of the inside of the rear side are connected to each other.본 발명은 파껍질 탈피의 효율성을 높이면서도 간단한 구조로 편리하게 사용할 수 있고, 탈피된 파껍질 및 흙 등의 부산물을 용이하게 수거 후 폐기할 수 있는 파껍질 탈피장치에 관한 것으로, 프레임과, 상기 프레임에 고정 설치되고, 전후가 개방되어 중공인 내부를 가지며, 일측 외주면에 내부로 압축공기가 유입되도록 공기유입홀이 관통 형성된 석션바디와, 원통 형상으로 상기 석션바디의 전방 내부로 삽입 결합되고, 상기 석션바디의 공기유입홀과 연통되도록 외주면에 환형의 공기전달홈이 함몰 형성되며, 후단에 상기 공기전달홈과 각각 연통되도록 방사상으로 복수의 공기분사홀이 관통 형성되어 상기 석션바디의 전방 내부로 삽입된 파의 파껍질을 탈피하는 노즐몸체와, 상기 석션바디의 후단에 니플을 매개로 결합되어 탈피된 파껍질을 후방으로 배출하는 배출튜브를 포함하고, 상기 니플은, 전방 내부의 축경부와 후방 내부의 확경부가