Water purifier and filter for the same

A water purifier comprising:

• a raw water flow path formed to bring in raw water from the outside;
• a purified water flow path connected to the raw water flow path for the raw water to flow in a first direction;
• a filter located in the purified water flow path to filter the raw water;
• a bypass flow path branched from the purified water flow path for the raw water to bypass the filter, and connected to the purified water flow path on a downstream side of the filter in the first direction, the bypass flow path including a sterilization water producing device;
• a washing flow path branched from the bypass flow path and connected to the purified water flow path on the downstream side of the filter in the first direction;
• a purified water discharge valve configured to open or close the purified water flow path for the raw water having passed through the bypass flow path or the washing flow path to flow in the purified water flow path in the first direction or a second direction opposite to the first direction;
• a purified water inflow valve installed in the purified water flow path to check flows of the raw water into the purified water flow path from the raw water flow path;
• and
• a drain flow path connected to the filter for sterilized water flowing in the second direction to be introduced into the filter and for the introduced sterilized water to be discharged,
• wherein based on the purified water discharge valve and the purified water inflow valve being closed, the filter is washed with the sterilized water.

A filter for a water purifier connectable to a purified water flow path in which raw water flows, the filter comprising:

• a filter housing:
• a filter body provided inside the filter housing to filter the raw water;
• and
• a filter cap coupled to the filter housing,
• wherein the filter cap comprises:
• a raw water inlet, through which the raw water is introduced,
• a purified water outlet, through which purified water filtered by the filter body is released in a first direction or the raw water is introduced from the purified water flow path in a second direction, and
• a drain outlet, through which the raw water introduced through the purified water outlet in the second direction is released out of the filter.