Air blowing device and indoor air conveying system using same

An air blowing device comprising:

• a housing having a hollow tube shape, the housing having a first side surface and a second side surface opposite to the first side surface, the first side surface having an inlet A and an outlet A, the second side surface having an inlet B and an outlet B;
• a partition plate which divides a hollow space of the housing into an upstream section and a downstream section which communicate with each other;
• an air blower which conveys air from the upstream section to the downstream section;
• dampers each disposed in a different one of the inlet A, the inlet B, the outlet A, and the outlet B, each of the dampers opening and closing an opening of a corresponding one of the inlet A, the inlet B, the outlet A, and the outlet B;
• and
• a controller which controls air blowing of the air blower and opening and closing of each of the dampers,
• wherein the inlet A and the inlet B are disposed in the upstream section, and
• the outlet A and the outlet B are disposed in the downstream section.