Double-layer soundproof door of anechoic chamber

The utility model relates to an anechoic room double-layer soundproof door which comprises a fixed door frame, a first soundproof door plate, a fixed frame, a rotating frame, a second soundproof door plate and a high-elasticity foaming silica gel sealing plate. The fixed frame is arranged on the fixed door frame, and the fixed frame and the first sound insulation door plate are arranged on the two sides of the fixed door frame. The rotating frame is connected with the fixed frame and can rotate relative to the fixed frame; the second sound insulation door plate is arranged on the rotating frame; the high-elasticity foaming silica gel sealing plate is arranged between the fixed door frame and the first sound insulation door plate; the first sound insulation door plate and the second sound insulation door plate form a double-layer sound insulation door, and an air sound absorption layer is formed between the first sound insulation door plate and the second sound insulation door plate. The double-layer sound ins