Wall-mounted air conditioner indoor unit and wall-mounted air conditioner

According to the wall-mounted air conditioner indoor unit and the wall-mounted air conditioner, an air supply outlet is formed in the position, below the front side wall of a machine shell, of an air supply duct, and the air supply duct is used for allowing airflow flowing through an indoor heat exchanger to flow out of the air supply outlet through the air supply duct. The partition plate is arranged in the machine shell and located on the rear side of the front side wall of the machine shell, and an air inducing channel is formed between the partition plate and the front side wall of the machine shell. The lower side of the air inducing duct communicates with the upper side of the air supply duct so that airflow, flowing through the indoor heat exchanger, in the air supply duct can flow into the air inducing duct. The induced air outlet part extends backwards from the upper end of the front side wall of the machine shell to abut against the partition plate and is used for forming an induced air outlet of th