Washing filter for air conditioning unit

The invention discloses a washing filter for an air conditioning unit. The washing filter comprises a water pump, a water supply pipeline system, a water storage tank at the top and a bottom collecting tray. The water pump supplies water in the bottom collecting tray to the water storage tank at the top through the water supply pipeline system. The washing filter is characterized in that a metal mesh interlayer glass fiber board is arranged between the water storage tank and the bottom collecting tray, water in the water storage tank flows through the metal mesh interlayer glass fiber board to form an even water curtain, and particles in air are dissolved in the water through the water curtain and taken into the bottom collecting tray. The self-cleaning function can be achieved, the filter is prevented from being replaced frequently, the harmful current situation that the resistance loss of the filter and energy consumption are increased along with running time accumulation is avoided, environmental protection and energy saving are achieved, and the washing filter is suitable for being used for various types of central air conditioning equipment.