The invention discloses a dry powder inhaler, which comprises a bearing plate, a suction nozzle, a capsule chamber, a button, a spring and a lower shell, wherein through holes are formed in the bearing plate in a going-through mode; the suction nozzle is connected to the upper side of the bearing plate and is arranged on the through holes; the capsule chamber is connected to the lower side of the bearing plate and is located on the through holes; tip pins, which are made from metal, are connected to the button, and the tip pins, through a pressing action of the button, can extend into the capsule chamber; the spring is clamped between the button and the capsule chamber, and by virtue of the spring, elasticity away from the direction of the capsule chamber is exerted; the upper side of the lower shell is of an opening structure; the bearing plate is connected to an opening of the upper side of the lower shell, and meanwhile, the capsule chamber is accommodated within the lower shell; the tip pins are fixedly connected to the button by virtue of a plastic tip pin seat; the tip pins and the tip pin seat are fixed in an injection-molding mode; and the tip pin seat and the button are fixed in a clamping mode. According to the dry powder inhaler, the tip pins, when used, are prevented from getting fallen or displaced easily; and moreover, the capsule chamber can be cleaned by a user more conveniently.