A clothing dryer having an improved structure of a drainage unit thereof, including: a body; a drum; a base that is disposed at a lower portion of the drum; a first water tub that is mounted on the base to collect condensate water generated when a drying operation is performed; and a plurality of drainage pipes that are combined with one side of the first water tub and cause the condensate water to move, wherein, in order to change a position at which the plurality of drainage pipes and the first water tub are combined with each other, the first water tub is combined with edges of the base so that at least a part of the first water tub is able to be exposed to an outside.