PROBLEM TO BE SOLVED: To provide a Welsh onion processing device capable of efficiently stripping off an outer cover of a Welsh onion.SOLUTION: A Welsh onion processing device 1 comprises: a right and left pair of nozzle bodies 31 that can rotate reciprocatingly and rotation drive means for causing the two nozzle bodies 31 to rotate reciprocatingly. The two nozzle bodies 31 can rotate reciprocatingly from side to side around a rotation center axis line in a vertical direction at a predetermined rotation angle. The two nozzle bodies 31 inject high pressure air while rotating reciprocatingly from side to side, and by the injection of high pressure air, an outer cover 2c of a Welsh onion can be stripped off.COPYRIGHT: (C)2014,JPO&INPIT【課題】長ねぎの外皮を効率良く剥ぎ取ることができる長ねぎ処理装置を提供する。【解決手段】長ねぎ処理装置1は、往復回動可能な左右1対のノズル体31と、これら両ノズル体31を往復回動させる回動駆動手段とを備えている。両ノズル体31は、上下方向の回動中心軸線を中心として所定回動角度をもって左右方向に往復回動可能となっている。両ノズル体31が左右方向に往復回動しながら高圧空気を噴射し、この高圧空気の噴射によって長ねぎ2の外皮2cを剥ぎ取る。【選択図】図1