A dispenser-cap device (1) for a bottle extends substantially along an axis(A) and is formed by: an essentially tubular base body (3), connectable in a fluid-tight manner to a neck (7) of the bottle(2) and having an inner chamber (20); a handle element(4), rotatably coupled to the base body and axially connected to the base body; and a spout element (5) having a channel (51)communicating with thechamber; the spout element (5) is telescopically coupled to the handle element (4) by respective threaded portions (43, 44) and being slidable with respect to the base body (3) along the axis (A) dueto rotation of the handle element (4) with respect to the base body (3) for selectively opening/closing a passage (63) between the channel (51) and the chamber (20).