The invention discloses a tail end hose device used for a concrete pump vehicle, comprising a delivery pipe (1). The lateral wall of the delivery pipe (1) is sleeved with a mass disc (2), and a gap is arranged between the side wall of the inner ring of the mass disc (2) and the lateral wall of the delivery pipe (1); and a support part protruding out of the lateral wall of the delivery pipe (1) is arranged at least one of the upper and down parts of the mass disc (2), and the mass disc (2) is connected the with the support part through a flexible part so as to facilitate the mass disc (2) to reciprocate along the axial direction of the delivery pipe (1). The device can effectively reduce the vibration when the tail end hose device delivers materials, and has high the reliability of reducing vibration and low operation cost. In addition, the invention also discloses a concrete pump car comprising the tail end hose device. Furthermore, the invention discloses a pipeline delivery device.