The invention discloses a heat exchanger cleaning spray and a heat pump clothes dryer cleaning device with same. The heat exchanger cleaning sprayer comprises a shell and a reinforcer, wherein a spray cavity is defined inside the shell, a water inlet communicated with the spray cavity and a water outlet passage communicated with the spray cavity are disposed on the shell, the end, away from the spray cavity, of the water outlet passage is a water outlet, and both the water outlet and the water outlet passage are in a long rectangular shape; the reinforcer is positioned inside the water outlet passage and connected with the shell, and comprises a plurality of reinforcement parts which support the water outlet passage and are arranged in the water outlet passage at intervals in the extension direction of the water outlet, and in the water flow direction, each reinforcement part is spaced apart from the edge of the water outlet. The heat exchanger cleaning device can spray a continuous curtain water flow from the water outlet, clean the heat exchanger, remove impurities such as soft flocks from the heat exchanger, and improve heat exchange performance and drying efficiency.