Hemispheroid cyclone

The invention relates to a hemispheroid cyclone comprising a hemispheric flow separation body, a feeding inlet, a liquid overflowing outlet and a sand setting pipe. The liquid overflowing outlet is located in the top end of the hemispheric flow separation body. The feeding inlet is in the tangent line direction of the bottom of the hemispheric flow separation body. The sand setting pipe is connected below the hemispheric flow separation body. By adopting the hemispheric flow separation body, the rising resistance of rising liquid is reduced, and liquid leaking is reduced. 本发明涉及种半球体旋流器，包括有半球分流体、进料口、溢液口、沉沙管，溢液口在半球分流体的顶端，进料口在半球分流体的底部切线方向上，沉沙管连接在半球分流体的下方。本发明采用了半球分流体，可以使上升的液体的上升阻力减小，减少漏液的发生。