A dishwasher, comprising: a tub for forming a space in which dishes are disposed; an injection module (34, 36, 38) for injecting washing water toward the dishes; a sump for storing washing water supplied to the injection module (34, 36, 38); a washing pump for feeding the washing water stored in the sump to the injection module (34, 36, 38); and an air jet generator for receiving some of the washing water fed from the washing pump to form air bubbles in the washing water and to discharge the washing water to the sump, wherein the air jet generator comprises: an air crushing pipe comprising a decompression portion for depressurizing the flowing washing water, a pressing portion for pressing washing water flowing downstream of the decompression portion, and an air inlet hole formed to introduce external air in downstream of the decompression portion, wherein the air crushing pipe is disposed under a bottom surface of the tub, an air tap having a plurality of holes for crushing the air existing in the washing water discharged from the air crushing pipe; and a nozzle connected to the air tap to discharge washing water that has passed through the air tap to the tub; characterized in that the air jet generator further comprises: an air tap fixing member coupled to the air tap and detachably mounted in the air crushing pipe, wherein the air tap fixing member is coupled to the nozzle, wherein the air tap fixing member is detachably disposed above the air crushing pipe at an upper side of the bottom surface of the tub. II a tub for forming a space in which dishes are disposed; an injection module (34, 36, 38) for injecting washing water toward the dishes; a sump for storing washing water supplied to the injection module (34, 36, 38); a washing pump for feeding the washing water stored in the sump to the injection module (34, 36, 38); and an air jet generator for receiving some of the washing water fed from the washing pump to form air bubbles in the washing water and to discharge the washing water to the sump, wherein the air jet generator comprises: an air crushing pipe comprising a decompression portion for depressurizing the flowing washing water, a pressing portion for pressing washing water flowing downstream of the decompression portion, and an air inlet hole formed to introduce external air in downstream of the decompression portion, wherein the air crushing pipe is disposed under a bottom surface of the tub, an air tap having a plurality of holes for crushing the air existing in the washing water discharged from the air crushing pipe; and a nozzle connected to the air tap to discharge washing water that has passed through the air tap to the tub; characterized in that the air jet generator further comprises: an air tap fixing member coupled to the air tap and detachably mounted in the air crushing pipe, wherein the air tap fixing member is coupled to the nozzle, wherein the air tap fixing member is detachably disposed above the air crushing pipe at an upper side of the bottom surface of the tub. II an air crushing pipe comprising a decompression portion for depressurizing the flowing washing water, a pressing portion for pressing washing water flowing downstream of the decompression portion, and an air inlet hole formed to introduce external air in downstream of the decompression portion, wherein the air crushing pipe is disposed under a bottom surface of the tub, an air tap having a plurality of holes for crushing the air existing in the washing water discharged from the air crushing pipe; and a nozzle connected to the air tap to discharge washing water that has passed through the air tap to the tub; characterized in that the air jet generator further comprises: an air tap fixing member coupled to the air tap and detachably mounted in the air crushing pipe, wherein the air tap fixing member is coupled to the nozzle, wherein the air tap fixing member is detachably disposed above the air crushing pipe at an upper side of the bottom surface of the tub. II an air tap fixing member coupled to the air tap and detachably mounted in the air crushing pipe, wherein the air tap fixing member is coupled to the nozzle, wherein the air tap fixing member is detachably disposed above the air crushing pipe at an upper side of the bottom surface of the tub. II