Drilling fluid agitator is an important equipment for the drilling fluid purification system.The agitator is installed on the circulation tank and the impeller deep into the drilling fluid to agitator the drilling fluid, so that the drilling fluid is fully stirred evenly to prevent the solid phase particles in the drilling fluid from sedimenting, maintaining the required performance of the drilling fluid, and providing the drilling fluid required for the drilling operation in time,thereby ensuring safe and smooth drilling operations.