The invention discloses a liquid spraying device, and relates to the technical field of liquid spraying for filling liquid. The liquid spraying device comprises a bottle body, and further comprises ascreen, a conversion tube and a liquid conveying tube as well as a gravity ball, wherein the screen is fixedly arranged on the middle part of the bottle body; the screen is equipped with a through hole which enables the bottle bottom to communicate with a bottleneck; the top end of the screen downwards tilts towards the opening of the through hole; the bottom end of the screen upwards tilts towards the opening of the through hole; the conversion tube is arranged at the opening of the bottle body, one end of the conversion tube penetrates into the bottle body, and the other end of the conversion tube is connected to the spray nozzle through a pressurizing unit; one end of the liquid conveying tube is connected to the conversion tube; the gravity ball is arranged in the bottle body, and is connected to the other end of the liquid conveying tube; and the gravity ball can pass through the through hole. The liquid spraying device has the beneficial effects that: compared with a conventionalliquid spraying device, the liquid spraying device has the advantages that a liquid inlet of the liquid conveying tube can be kept on the bottommost part of a solution, the solution can be uniformlysprayed in a 360-degre all-around mode, and the problem that liquid in the bottle body cannot be sucked out as a result of self-winding of the liquid conveying tube is avoided.