Dust and noise reduction device and method for breaking hammer of excavator

The invention discloses a dust-settling and noise-reducing device and method for an excavator breaking hammer, and relates to the field of dust-removing devices. The dust and noise reduction device for the excavator breaking hammer comprises a water tank, a first water pump, an annular support connected to the bottom of a shell of the excavator breaking hammer and a telescopic protection cover arranged on the outer side of a drill rod of the excavator breaking hammer in a covering mode, the top of the protection cover is connected to the bottom of the annular support, and an annular water spraying pipe arranged on the drill rod of the excavator breaking hammer in a sleeving mode is arranged in the protection cover. The water spraying pipe is connected to the annular support, the bottom of the water spraying pipe is connected with a plurality of sprayers, the first water pump is connected with the water tank and the water spraying pipe through water outlet pipes, and the inner wall of the bottom of the protect