To provide a side wall panel for air-conditioning and a side wall structure using the panel, which increases the workability by widening the working area in a drier and which is hygienic and well-balanced in the air- conditioning.

A side wall hollow panel 11 is provided with an air inlet I at one end and an air-blowing outlet O at the other end and also a connection passage R of the air-inlet I and the airoutlet O. When it is used as a wall structure (side wall), it can provide a fuction as an induction duct besides. When it is used for a wall structure of a drier, the working area in the drier can be widened maximally and hence, the workability is improved and the safety is increased and also the hygienic condition is improved.