Facility for discharging leaching residue slurry

[Problem] To provide a facility for discharging a leaching residue slurry in which the whole of an entire retention pond can be effectively utilized for storage of a leaching residue slurry. [Solution] Equipment for discharging a leaching residue slurry S into a retention pond P, wherein the equipment is provided with: a releasing unit 10 for releasing the leaching residue slurry S, the releasing unit 10 being provided with a floating body 11 floating on the water surface F of the retention pond P; and a feed unit 2 for feeding the leaching residue slurry S to the releasing unit 10. Because the floating body 11 causes the releasing unit 10 to float on the water surface F of the retention pond P, moving the releasing unit 10 on the water surface F of the retention pond P makes it possible to position the releasing unit 10 at the desired position on the retention pond P. The retention pond P can therefore be effectively utilized to the center part thereof as a region for storing the leaching residue slurry S.