Power tool having a hammer mechanism

A power tool having a hammer mechanism, comprising:

• a tool mounting portion which a tip tool is mounted to;
• a connecting part configured to be connectable with a dust collector that is configured to suck dust generated during processing of an object material to be processed by using the tip tool, and provided with a connection flow path configured to suck in the air from the dust collector, so as to generate a suction power in the dust collector;
• a motor provided with a rotating shaft;
• a driving mechanism connected with a first end part of the rotating shaft and configured to convert a rotational motion of the rotating shaft into a reciprocating motion and transmit the reciprocating motion to the tip tool;
• a first fan connected with a second end part of the rotating shaft and configured to rotate with the rotating shaft and blow the air in a centrifugal direction, so as to generate a first air flow that serves to cool down the motor;
• a second fan stacked on the first fan via a middle wall in an axial direction of the rotating shaft and configured to rotate with the first fan and blow the air in the centrifugal direction, so as to generate a second air flow that serves to generate the suction power;
• a housing provided with a first exhaust port configured to discharge the first air flow therethrough and a second exhaust port configured to discharge the second air flow therethrough;
• a first exhaust flow path configured to guide the first air flow to the first exhaust port;
• and
• a second exhaust flow path separated from the first exhaust flow path and configured to guide the second air flow to the second exhaust port.