Intelligent impurity removal machine, based on GB/T 5494 regulations, is equipped with corresponding sized screens, integrating multi-layer screening, vibration, and air separation technologies to achieve automatic screening of grain impurities, without the need for personnel to replace the screen, and can adapt to the impurity removal needs of different grains. Based on intelligent control technology, automatic calculation of impurity rate can be achieved, vibration frequency and wind speed can be adjusted as needed, and automation transformation, information uploading, and remote control can be supported.