Solar air heating collector

The invention discloses a solar air heating collector which comprises an air header and vacuum tubes perpendicular to the axis of the air header. Each vacuum tube is a blind tube with open end and the other closed end, cold air flowing channels and hot air flowing channels parallelly arranged and spaced are arranged in the air header, air inlet tubes communicated with the cold air flowing channels and air outlet tubes communicated with the hot air flowing channels are arranged on the air header, the open ends of the vacuum tubes are in sealed connection with the outer wall of the air header and then is communicated with the hot air flowing channels, a cold air guide tubes with two open ends are arranged in each vacuum tube, one end of each cold air guide tube is close to the closed end of the corresponding vacuum tube, the other end of each cold air guide tube is communicated with the corresponding cold air flowing channel. By arranging the cold air guide tubes in the common vacuum tubes and utilizing the vac