Air-purifying device

An air purification apparatus comprising:

• an air purification module comprising a first housing, a first passage, a first fan, and a dust collection filter, wherein the first housing comprises a first inlet and a first outlet, the first passage extends inside the first housing from the first inlet to the first outlet, the first fan is provided in the first passage, and the dust collection filter is provided in the first passage;
• an air sterilization module comprising a second housing, a second passage, a second fan, and an ultraviolet light source, wherein the second housing comprises a second inlet and a second outlet, the second passage extends inside the second housing from the second inlet to the second outlet, the second fan is provided in the second passage, and the ultraviolet light source is provided in the second passage and configured to irradiate ultraviolet rays;
• and
• a connection module connecting the air purification module and the air sterilization module to each other to enable air to flow therebetween,
• wherein the connection module comprises:
• a connection housing connecting the first housing and the second housing to each other and forming an exterior thereof;
• a connection passage provided to allow at least a portion of air discharged through the first outlet to be introduced into the connection housing and flow into the second passage through the second inlet;
• a lighting portion comprising a light source and a reflective surface,
• wherein the light source is arranged to surround a periphery of the connection passage, and the reflective surface is configured to reflect light irradiated by the light source and irradiate the light to outside of the connection housing;
• and
• a partition wall structure including a wall configured to block introduction of air between the lighting portion and the connection passage.