Vibrating screen with screen cloth convenient to adjust

The vibrating screen comprises a base and a supporting bottom, an oscillator is fixedly connected to the lower portion of the supporting bottom, the oscillator is connected with a driving device used for driving the oscillator to operate, a plurality of damping springs are arranged between the base and the supporting bottom, a bottom cylinder, a middle cylinder and a protective cylinder are sequentially arranged at the upper end of the supporting bottom, and the bottom cylinder is connected with the middle cylinder. Screens are arranged in the bottom cylinder and the middle cylinder. Flanges extend outwards from the sides, close to each other, of the bottom cylinder, the middle cylinder and the protective cylinder, a plurality of corresponding mounting holes are vertically formed in the flanges, and a lower discharging opening and an upper discharging opening are formed in the lower portion of the side wall of the bottom cylinder and the lower portion of the side wall of the middle cylinder in a penetrating a