Abstract: When the traditional heavy-medium cyclone works, due to the existence of a constantly oscillating air column inside, which not only affects the sorting accuracy but also consumes a lot of energy, its working principle determines the inevitable existence of these technical problems. Therefore, it fundamentally limits the development of cyclone technology to low energy consumption and high efficiency. The development of existing cyclones is almost at a standstill, and the studying of a new type cyclone is imperative. In this paper, the pressure field, the density distribution, the three-dimensional velocity field and the flow trajectory of a new two-product heavy medium cyclone are numerically simulated by fluent software, and the possibility of realizing the mineral separation by this new type of heavy medium cyclone is theoretically analyzed. The results show that the details of the fluid flow given by the CFD software, such as the pressure field, velocity field, and density distribution, conform to the distribution law of the flow field.Subsequent experiments have also proved that the new type of heavy medium cyclone can achieve effective separation of minerals and weaken the adverse effects of air columns and reduce energy consumption.