Abstract: A continuous type wastewater purifying device includes a wastewater tank defining a predetermined level of wastewater received in the wastewater tank. A purifying piping unit is mounted on a base and includes a wastewater pipe, a purified water pipe, and at least one heat conduction pipe having an inlet end and an outlet end respectively connected to and in communication with the wastewater pipe and the purified water pipe. The wastewater pipe has a first height from a mounting portion of the base in a height direction. The purified water pipe has a second height from the mounting portion in the height direction. The second height is greater than the first height. The inlet end and the outlet end of the at least one heat conduction pipe has a height difference therebetween. The outlet end of the at least one heat conduction pipe is higher than the predetermined level.