Double-layer vibration screen of peanut combine

A double-layer vibration screen of a peanut combine comprises an upper-layer screen, a lower-layer screen and a screen side plate, the upper-layer screen and the lower-layer screen are fixed on the screen side plate; the upper-layer screen is a strip plane screen; the lower-layer screen includes a bottom screen and a top screen which is arranged on the bottom screen, the bottom screen is a net plane screen, the top screen is stair-stepping three-dimensional screen which is composed of an inclined screen surface and a vertical screen surface, and the inclined screen surface and the vertical screen surface are both net plane screens. The width of the lower-layer screen is equal to that of the upper-layer screen; the length of the lower-layer screen is no smaller than two thirds of that of the upper-layer screen; one end of the wide edge of the lower-layer screen is aligned with one end of the wide edge of the upper-layer screen, and the other end of the wide edge of the lower-layer screen is connected with the