A clothes dryer adapter. The adapter includes (a) a first cylindrical portion with a generally cylindrical tubular segment having a first longitudinal axis, a inlet portion, an inlet end cap located at an effective inlet end, and an outlet end, and (b) a second cylindrical portion interfittingly engaging the first cylindrical portion for rotatable adjustment with respect thereto. the second cylindrical portion is similar to the first cylindrical portion, and has an inlet end, an outlet end cap located at an effective outlet end, and an outlet portion for discharge of hot dryer exhaust air therefrom. The two portions are rotatably adjustable, before assembly, but sized and shaped for interfitting mating engagement to form a sturdy, sealable dryer vent when fully assembled, having an inlet portion and an outlet portion with parallel but offset longitudinal axes.