Abstract: This describes a centrifugal separator for fluid and solid mixtures. The rotating centrifuge assembly includes a structure of two rotating circular cones having transfer veins in which the separation takes place in the veins between the two cones. The cross-sectional area of each such vein increases linearly from the bottom to the top. At the top of the transfer veins there is a dense material transfer vein and a light material transfer vein. One discharge vein is an opening which is slanted backwardly from the motion of the rotating centrifuge assembly to the outside circumference of the centrifuge assembly while the second opening is to the inner vortex of the centrifugal assembly. The inner vortex is connected to a vortex pump which removes the least dense material.