To heighten the water spraying effect for a site to be crushed, efficiently suppressing generation and diffusion of powder dust at the site to be crushed, simplify the structure, and lower the production cost.

The apparatus with a sprinkler nozzle for dismantling at height includes a crusher 29 rotated in the up and down direction by a cylinder 34 for rotating a crusher at the tip end part of a working attachment 24 of construction machinery and a sprinkler nozzle 28 for spraying water to a site to be crushed by the crusher 29, and is configured in a manner that the water spraying direction of the sprinkler nozzle 28 can be changed synchronously with the rotation of the crusher 29 by installing a rotating link 47 capable of rotating in the up and down direction along with the expansion and contraction work of the cylinder 34 for rotating a crusher between the cylinder 34 for rotating a crusher and the working attachment 24 and attaching the sprinkler nozzle 28 in the middle part of the rotating link 47.