The invention provides a self-exhausting lift type hydrant and relates to the technical field of water conservancy equipment. The self-exhausting lift type hydrant comprises an elbow, an inner pipe, a gland, an outer pipe and a bottom support, wherein the elbow is connected with the inner pipe; the inner pipe moves in the outer pipe; the gland is arranged at the upper end part of the outer pipe; the outer pipe is connected with the bottom support; an exhausting valve is arranged on the bottom support; the exhausting valve comprises an outer mounting shell; a limiting part is arranged on the outer mounting shell; an elastic sealing body for allowing water flow to pass through is arranged at the upper part of the outer mounting shell; a floating ball is arranged between the limiting part and the elastic sealing body; and the floating ball is capable of floating upwards to block a water outlet in the elastic sealing body. By virtue of the design of the exhausting valve, the self-exhausting lift type hydrant provided by the invention is capable of eliminating the water hammer phenomenon; by adopting a valve composite component, the problem of the poor sealing effect of a rubber ring is prevented; the self-exhausting lift type hydrant is simple in structure, convenient to open and close, scientific in manufacturing process, economical, practical, and widely applicable to farm irrigation, water supply and water draining of urban green lands.