No, you should not use a hair dryer to get rid of water from your phone’s speakers. This is because the hair dryer emits very high temperature air that can further damage your phone’s speakers and can even harm your phone’s battery and motherboard. In fact, blow dryers tend to push water further inside your phone that damages it more. So, using a hair dryer is not recommended. Preferably, you do have the option to dry your phone by putting it in a clean bag of rice or silica gel packets.