Abstract: A jet type condenser comprises a shell (8). A plurality of multilayered inner water chambers (3,4) is arranged in the shell, multilayered outer water chambers (9,10) being correspondingly in communication with the inner water chambers (3,4) are arranged outside the shell (8), each of the outer water chambers (9,10) is in communication with a water source, the lower portion of the inner water chamber (4) in a bottom layer is an air-cooling area (6), and a water guiding tube (16) in communication with the air-cooling area (6) is arranged at the bottom of the inner water chamber (4) of the bottom layer.