Stock bin with dust-free and noise-free aggregate metering mechanism

The utility model discloses a stock bin with a dust-free and noise-free aggregate metering mechanism. The stock bin comprises a stock bin body, an inlet weighing mechanism, an outlet weighing device, a closed conveying mechanism and a control system, the stock bin body is arranged on the ground; the inlet weighing mechanism and the outlet weighing mechanism are both arranged underground; the inlet weighing mechanism comprises a weighing bin I and a weighing bin II; the outlet weighing device comprises a weighing bin III and a weighing bin IV; weighing mechanisms are arranged at the bottoms of the weighing bin I, the weighing bin II, the weighing bin III and the weighing bin IV; the closed conveying mechanism connects the stock bin body, the inlet weighing mechanism and the outlet weighing device; the conveying section I and the conveying section III are provided with branches, and one-way distribution mechanisms are arranged at the positions of the branches; the single-pass distribution mechanism and the weig