Abstract: A flock separator is disclosed and claimed, which includes a container adapted to produce a centrifugal force to separate flocks from solution, lead-out tubes equiangularly and fixedly fastened to the container and adapted to guide flock-free solution out of the container, each lead-out tube having a first opening suspended in the fluid chamber near the central axis of the container and a second opening extended to the outside of the container, a first annular collector extended around the periphery of the container and adapted to collect output flocks from the drain port of the container, and a second annular collector extended around the periphery of the container and adapted to receive flock-free solution from the second opening of each lead-out tube.