A tubular fluid purification apparatus includes a guide part provided with an inlet port into which fluid is drawn, a discharge part provided with an outlet port from which the fluid is discharged, a conduit part configured to provide a space for flow of the fluid between the guide part and the discharge part, and a purification of unit supported on an inner surface of the conduit part and disposed to face the fluid flowing from the guide part to the discharge part. The purification unit includes a vortex generation part including a support and an opening formed in the support, and a light emitting diode disposed on the support at a position adjacent to the opening and configured to provide ultraviolet light.