The invention discloses a household dust collector convenient to use. The household dust collector comprises a case, a solar panel, a dust sucking switch, a water sucking switch, a handle, pulleys, a water sucking tube, a dust sucking tube, a sucker, a socket, a lantern ring, a dust storage box, an upper tube hole, a lower tube hole, a water storage tank and a storage battery. The household dust collector is simple in structure, low in cost and strong in practicability; when the household dust collector is adopted to collect dust, the dust sucking switch is powered on, dust is cleaned by using the dust sucking tube; and when sewage needs to be cleaned, the water sucking switch is powered on, and the sewage is cleaned by using the water sucking tube. Due to adoption of the pulleys, the device can be moved, the device can be moved by rotation of the pulleys when the case is pushed, and thus the device can be convenient to use. Due to adoption of the dust storage box and the water storage tank inside the device, sewage can be separated from dust, and thus the dust and the sewage can be conveniently cleaned. Due to adoption of the solar panel above the case, solar energy can be stored and utilized by the device, so that the energy can be effectively saved. As the dust storage box and the water storage tank are vertically placed together, the internal space of the device is saved.