The invention provides a solar hot airflow power generation wind collection and exhaust tower using a sealed mountain for pressurization. The solar hot airflow power generation wind collection and exhaust tower using the sealed mountain for pressurization comprises a sunlight greenhouse. The upper end of the sunlight greenhouse is connected with a mountain air duct through a transition air duct. The mountain air duct is longitudinally formed in the mountain and comprises an inner wall layer and a filter layer. The filter layer is arranged outside the inner wall layer. The inner wall layer is provided with a flow channel. The mountain is provided with an internal water system. The internal water system is communicated with the mountain air duct. According to the solar hot airflow power generation wind collection and exhaust tower using the sealed mountain for pressurization, the structure of a building is stable and aseismic; the mountain air duct is formed in the mountain so that the geothermal source can be fully used, and the airtightness of the connection air duct is guaranteed; heat preservation and temperature increment are achieved through the connection air duct, so that the loss of stored solar heat energy is reduced, the operating cost is reduced, building waste is eliminated, building materials are replaced by a large amount of stone obtained through blasting excavation, the construction cost is reduced, and the natural environment of the mountain is protected.