Provided is a water purifier. The water purifier includes a water purifier body provided with a filter, purifying raw water supplied from the outside, and supplying purified water, a water discharge module of which at least a portion is coupled to protrude to the front of the water purifier body so that at least a portion thereof rotates or is elevated with respect to the water purifier body and which is provided with a water discharge nozzle, which supplies the purified water supplied from the water purifier body to a user, in a lower end thereof, a driving unit providing power providing power required for the rotation and elevation of the water discharge module, a detection unit installed in the water purifier body or the water discharge module to recognize a position and size of a container placed around the water purifier body, and a control unit receiving position information and size information of the container from the detection unit to control the driving unit so that the water discharge nozzle moves above the container.