Maintenance-free double-oil-discharge device of double-row roller bearing

The invention relates to a maintenance-free double-oil-discharge device, in particular to a maintenance-free double-oil-discharge device of a double-row roller bearing. The problems that in an existing bearing assembly structure, a lubricating grease oil way is not smooth, and maintenance is difficult are solved. A shaft is sleeved with a double-row roller bearing, two oil flingers are arranged on the shaft in a sleeving mode and located on the left side and the right side of the double-row roller bearing respectively, the double-row roller bearing is sleeved with a bearing seat, the shaft is sleeved with a bearing outer cover and a bearing inner cover, and an oil discharge box is installed on the bearing outer cover. An oil discharge hole is formed in the bearing seat between the bearing outer cover and the bearing inner cover, the oil discharge hole is communicated with the bearing outer cover and the bearing inner cover, waste oil flows into the oil discharge box after passing through the oil discharge hol