The invention provides separation equipment and a separation treatment method. The separation equipment comprises a cyclone provided with a bottom flow opening, and a separator provided with an input opening connected with the bottom flow opening, wherein the cyclone performs a first separation treatment on a substance entering the separation equipment; and then the substance after the first separation treatment enters the separator for a second separation treatment. According to the separation equipment disclosed by the embodiment of the invention, in-situ pre-water separation, sewage in-situ treatment and in-situ sediment collection and discharge can be realized, so that energy consumption and operation cost are greatly reduced, and economic benefits are increased. Besides, the separation treatment technology is also simplified, and the separation treatment efficiency is improved.