The invention discloses an anti-dripping pipeline and a water purifier. The anti-dripping pipeline comprises a water feeding cavity connected nearby a water pipeline water inlet in series, and a waterdischarging cavity connected between a water pipeline water outlet and a valve in series, and the water inlet is connected to the upper part of the water feeding cavity; the valve is connected to a water pipeline between a first water outlet formed in the upper part of the water feeding cavity and a second water inlet formed in the lower part of the water feeding cavity, and the second water inlet formed in the lower part of the water feeding cavity is connected with the water pipeline; the water discharging cavity is formed in the upper part of the water feeding cavity, and a piston is arranged between the water discharging cavity and the water feeding cavity; the upper end of the piston is placed in the water discharging cavity, and the lower end of the piston is placed in the water feeding cavity; and springs are arranged on the lower part, at the upper end of the piston, in the water discharging cavity. The water feeding cavity and the water discharging cavity are formed in the water pipeline, the piston is arranged between the water feeding cavity and the water discharging cavity, thus the piston downwards moves when the valve is closed on the basis of the pressure change caused by opening and closing of the valve to the end face of the piston, residual water at the water outlet is sucked into the water discharging cavity, and thus the anti-dripping effect is achieved.