Absorption type air drying system using non-purge operation and purge operation with booster blower

The present invention relates to an adsorption type air drying system which removes moisture from the air and, more specifically, to an adsorption type air drying system for non-purge and purge operations, which can operate equipment by selectively using a non-purge operation method and a purge operation method. The present invention provides an absorption type air drying system for non-purge and purge operations, which has easy configuration of a flow path of the system, reduces the number of components of a target object such as a valve or the like requiring to be controlled in accordance with an operation state, significantly reduces system configuration costs and maintenance costs, can be used under various pressure conditions, and can be operated in circumstances such as an abnormal operation of a blowing booster, in particular, or the like, etc. The absorption type air drying system for non-purge and purge operations using a boosting blower comprises: a first tower and a second tower; a main line; a regeneration line; a first connection line; a second connection line; a discharge line; a joint line; a boosting line; a blower; a valve means; and a bypass line.