The upper part of this machine adopts a quick detachable handle, connecting the whole machine as a whole. The upper cover is fully sealed, effectively preventing dust from flying due to vibration during material screening. The lower part of the screen body is equipped with a vibration motor, effectively ensuring the compactness of the material structure. The lower part adopts spring vibration reduction, allowing the whole machine to work in a stable state. The base below is adjustable, allowing for the adjustment of the inclination angle of the screen surface during sieving, in order to achieve the desired sieving effect based on the characteristics of the material.