Slag washing separation optimization device based on green coal mine

The invention discloses a green coal mine-based slag washing separation optimization device which comprises a cleaning module, slag is cleaned by the cleaning module and then conveyed to be dried or burnt through a conveying belt, the cleaning module comprises a cleaning cylinder, a cleaning basket, a spray head and a matched water supply and drainage backwater system, and a lifting rotation assembly is arranged in the cleaning cylinder; the lifting and rotating assembly is connected with a plurality of stretching mechanisms, each stretching mechanism is connected with a cleaning basket, the lifting and rotating assembly drives the cleaning baskets to lift and rotate, the nozzles clean the cleaning baskets in the lifting process of the cleaning baskets, and the stretching mechanisms drive the cleaning baskets to stretch out to contain or discharge materials. In the ascending process of the cleaning basket, countercurrent cleaning is conducted, a small amount of water is used for multiple times of cleaning, du