Article sending system and output pipeline thereof

The invention discloses an article sending system and an output pipeline thereof. The article sending system comprises a sending assembly; the sending assembly is connected with an air supply pipeline and the output pipeline; the output pipeline at least comprises a smooth area pipeline and a falling area pipeline; the lower end of the falling area pipeline is a discharging end, and the falling area pipeline is provided with a deceleration buffer area; and a group of friction buffer parts are distributed at the deceleration buffer area from top to bottom at intervals, and the inner cross-sectional area of each friction buffer part is smaller than that of other positions of the falling area pipeline. According to the scheme, a conveyed object continuously makes contact with the multiple friction buffer parts to be continuously decelerated, the falling speed of the conveyed object is reduced to a low range in a layer-by-layer friction mode, impact in the speed reduction process can be effectively reduced throug